Harada Tomohiro 原田知広

… Alternative Names

HARADA Tomohiro 原田知広

Less

Researcher Number	60402773
Other IDs	https://orcid.org/0000-0002-9085-9905
Affiliation (Current)	2025: 立教大学, 理学部, 教授
Affiliation (based on the past Project Information) *help	2019 – 2024: 立教大学, 理学部, 教授 2015 – 2017: 立教大学, 理学部, 教授 2008 – 2014: Rikkyo University, 理学部, 准教授 2006 – 2007: 立教大学, 理学部, 講師 2005: 京都大学, 大学院・理学研究科, 講師(研究機関研究員)
Review Section/Research Field	Principal Investigator Particle/Nuclear/Cosmic ray/Astro physics / Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics Except Principal Investigator Transformative Research Areas, Section (II) / Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics / Particle/Nuclear/Cosmic ray/Astro physics / Science and Engineering
Keywords	Principal Investigator 原始ブラックホール / 一般相対論 / 重力崩壊 / ブラックホール / インフレーション宇宙論 / 初期宇宙 / 時空特異点 / 数値相対論 / 相対論 / インフレーション … More / 回転ブラックホール / 宇宙論的摂動 / 原始ゆらぎ / ビッグバン宇宙論 / 重力波 / スピン / 原始密度ゆらぎ / 宇宙論的揺らぎ / 膨張宇宙 / インフレーション理論 / 量子宇宙論 / 量子重力 / 重力理論 / 暗黒エネルギー / 重力(理論) … More Except Principal Investigator 原始ブラックホール / 重力レンズ / 巨視的ダークマター / ダークマター / ワームホール / 一般相対性理論 / 相対性理論 / 宇宙論 / 重力 / 相対論 / 宇宙物理 / ブラックホール / 一般相対論 / γ線バースト / 重力理論 / ブレーンワールド / ポストニュートン展開 / 重力波メモリー効果 / ダークエネルギー / DECIGO / BBO / ガンマ線バースト / カーター定数 / 中性子星 / 数値相対論 / 輻射反作用 / インフレーション / 重力波 Less

Numerical relativity studies on primordial black hole formation in different mechanismsPrincipal Investigator
- Principal Investigator
  
  原田知広
- Project Period (FY)
  2024 – 2028
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
- Research Institution
  Rikkyo University
Investigation of primordial black holes and macroscopic dark matter
- Principal Investigator
  
  柳哲文
- Project Period (FY)
  2020 – 2024
- Research Category
  
  Grant-in-Aid for Transformative Research Areas (A)
- Review Section
  
  Transformative Research Areas, Section (II)
- Research Institution
  Nagoya University
Theoretical prediction for the spin of primordial black holesPrincipal Investigator
- Principal Investigator
  
  Harada Tomohiro
- Project Period (FY)
  2019 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
- Research Institution
  Rikkyo University
Theoretical study of the mass and angular momentum distribution of primordial black holes
- Principal Investigator
  
  Yoo Chulmoon
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
- Research Institution
  Nagoya University
Formation of Primordial Black Holes in the Matter-Dominated Era of the UniversePrincipal Investigator
- Principal Investigator
  
  HARADA Tomohiro
- Project Period (FY)
  2014 – 2017
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  Rikkyo University
Observational tests of wormholes
- Principal Investigator
  
  ABE Fumio
- Project Period (FY)
  2011 – 2013
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  Nagoya University
Gravitational collapse and spacetime singularities in quantum gravityPrincipal Investigator
- Principal Investigator
  
  HARADA Tomohiro
- Project Period (FY)
  2009 – 2012
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  Rikkyo University
Application of spectral methods to high-accuracy numerical relativityPrincipal Investigator
- Principal Investigator
  
  HARADA Tomohiro
- Project Period (FY)
  2006 – 2008
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  Rikkyo University
重力波源と波形の研究
- Principal Investigator
  
  中村卓史
- Project Period (FY)
  2002 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research on Priority Areas
- Review Section
  
  Science and Engineering
- Research Institution
  Kyoto University

[Book] 宇宙まるごとQ & A: はやぶさ２からブラックホールまで2021
- Author(s)
  北本俊二, 原田知広, 亀田真吾
- Total Pages
  196
- Publisher
  理工図書
- Data Source
  KAKENHI-PROJECT-19K03876
[Journal Article] Relativistic orbits of S2 star in the presence of scalar field2024
- Author(s)
  Bambhaniya Parth、Joshi Ashok B.、Dey Dipanjan、Joshi Pankaj S.、Mazumdar Arindam、Harada Tomohiro、Nakao Ken-ichi
- Journal Title
  
  The European Physical Journal C
  
  Volume: 84 Issue: 2 Pages: 124-124
- DOI
  10.1140/epjc/s10052-024-12477-3
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K03557, KAKENHI-PROJECT-19K03876, KAKENHI-PLANNED-20H05853
[Journal Article] Revisiting compaction functions for primordial black hole formation2023
- Author(s)
  Harada Tomohiro、Yoo Chul-Moon、Koga Yasutaka
- Journal Title
  
  Physical Review D
  
  Volume: 108 Issue: 4 Pages: 1-8
- DOI
  10.1103/physrevd.108.043515
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K20367, KAKENHI-PROJECT-19K03876, KAKENHI-PLANNED-20H05853
[Journal Article] Spins of primordial black holes formed with a soft equation of state2023
- Author(s)
  Saito Daiki、Harada Tomohiro、Koga Yasutaka、Yoo Chul-Moon
- Journal Title
  
  Journal of Cosmology and Astroparticle Physics
  
  Volume: 2023 Issue: 07 Pages: 030-030
- DOI
  10.1088/1475-7516/2023/07/030
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K20367, KAKENHI-PROJECT-19K03876, KAKENHI-PLANNED-20H05853
[Journal Article] Radiative gravastar with thermal spectrum: Sudden vacuum condensation without gravitational collapse2023
- Author(s)
  Nakao Ken-ichi、Okabayashi Kazumasa、Harada Tomohiro
- Journal Title
  
  Physical Review D
  
  Volume: 107 Issue: 8 Pages: 1-11
- DOI
  10.1103/physrevd.107.084036
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21J15676, KAKENHI-PROJECT-23KJ1162, KAKENHI-PROJECT-21K03557, KAKENHI-PROJECT-19K03876, KAKENHI-PLANNED-20H05853
[Journal Article] Periapsis shifts in dark matter distribution around a black hole2023
- Author(s)
  Takahisa Igata, Tomohiro Harada, Hiromi Saida, Yohsuke Takamori
- Journal Title
  
  International Journal of Modern Physics D
  
  Volume: 32 Issue: 16 Pages: 2350105-2350105
- DOI
  10.1142/s0218271823501055
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K03611, KAKENHI-PROJECT-19K03876, KAKENHI-PLANNED-20H05853
[Journal Article] General formulae for the periapsis shift of a quasi-circular orbit in static spherically symmetric spacetimes and the active gravitational mass density2023
- Author(s)
  Tomohiro Harada, Takahisa Igata, Hiromi Saida, Yohsuke Takamori
- Journal Title
  
  International Journal of Modern Physics D
  
  Volume: 32 Issue: 15 Pages: 2350098-2350098
- DOI
  10.1142/s0218271823500980
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K03611, KAKENHI-PROJECT-19K03876, KAKENHI-PLANNED-20H05853
[Journal Article] Hairy black holes in AdS with Robin boundary conditions2023
- Author(s)
  Harada Tomohiro、Ishii Takaaki、Katagiri Takuya、Tanahashi Norihiro
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 202306 Issue: 6 Pages: 106-106
- DOI
  10.1007/jhep06(2023)106
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K03871, KAKENHI-PROJECT-18K03623, KAKENHI-PROJECT-19K03876, KAKENHI-PLANNED-20H05853
[Journal Article] Threshold of primordial black hole formation against velocity dispersion in matter-dominated era2023
- Author(s)
  Harada Tomohiro、Kohri Kazunori、Sasaki Misao、Terada Takahiro、Yoo Chul-Moon
- Journal Title
  
  Journal of Cosmology and Astroparticle Physics
  
  Volume: 2023 Issue: 02 Pages: 038-038
- DOI
  10.1088/1475-7516/2023/02/038
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PUBLICLY-22H05270, KAKENHI-PROJECT-17H01131, KAKENHI-PROJECT-19H01895, KAKENHI-PUBLICLY-20H04750, KAKENHI-PLANNED-20H05853
[Journal Article] Effective Inspiral Spin Distribution of Primordial Black Hole Binaries2022
- Author(s)
  Koga Yasutaka、Harada Tomohiro、Tada Yuichiro、Yokoyama Shuichiro、Yoo Chul-Moon
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 939 Issue: 2 Pages: 65-65
- DOI
  10.3847/1538-4357/ac93f1
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PROJECT-20K03968, KAKENHI-PROJECT-21K13918, KAKENHI-PROJECT-21K20367, KAKENHI-PROJECT-20H01932, KAKENHI-PROJECT-19H01895, KAKENHI-PLANNED-20H05853
[Journal Article] Robustness of particle creation in the formation of a compact object2022
- Author(s)
  Kazumasa Okabayashi, Tomohiro Harada, Ken-ichi Nakao
- Journal Title
  
  PTEP 2022 (2022) 2, 023E02
  
  Volume: 2 Issue: 2 Pages: 1-18
- DOI
  10.1093/ptep/ptac006
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21J15676, KAKENHI-PROJECT-19K03876, KAKENHI-PROJECT-21K03557, KAKENHI-PROJECT-19H01895
[Journal Article] Criteria for energy conditions2022
- Author(s)
  Maeda Hideki、Harada Tomohiro
- Journal Title
  
  Classical and Quantum Gravity
  
  Volume: 39 Issue: 19 Pages: 195002-195002
- DOI
  10.1088/1361-6382/ac8861
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PLANNED-20H05853
[Journal Article] Complete classification of Friedmann-Lema^tre-Robertson-Walker solutions with linear equation of state: parallelly propagated curvature singularities for general geodesics2022
- Author(s)
  Harada Tomohiro、Igata Takahisa、Sato Takuma、Carr Bernard
- Journal Title
  
  Classical and Quantum Gravity
  
  Volume: 39 Issue: 14 Pages: 145008-145008
- DOI
  10.1088/1361-6382/ac776e
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PLANNED-20H05853, KAKENHI-PROJECT-19H01895
[Journal Article] Thakurta metric does not describe a cosmological black hole2022
- Author(s)
  Harada Tomohiro、Maeda Hideki、Sato Takuma
- Journal Title
  
  Physics Letters B
  
  Volume: 833 Pages: 137332-137332
- DOI
  10.1016/j.physletb.2022.137332
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PROJECT-19H01895
[Journal Article] Radiative gravastar with Gibbons-Hawking temperature2022
- Author(s)
  Nakao Ken-ichi、Okabayashi Kazumasa、Harada Tomohiro
- Journal Title
  
  Physical Review D
  
  Volume: 106 Issue: 10 Pages: 105006-105006
- DOI
  10.1103/physrevd.106.105006
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PROJECT-21J15676, KAKENHI-PROJECT-19H01895, KAKENHI-PLANNED-20H05853
[Journal Article] Conformally Schwarzschild cosmological black holes2022
- Author(s)
  Sato Takuma、Maeda Hideki、Harada Tomohiro
- Journal Title
  
  Classical and Quantum Gravity
  
  Volume: 39 Issue: 21 Pages: 215011-215011
- DOI
  10.1088/1361-6382/ac902f
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PROJECT-19H01895, KAKENHI-PLANNED-20H05853
[Journal Article] Primordial black hole formation from massless scalar isocurvature2022
- Author(s)
  Yoo Chul-Moon、Harada Tomohiro、Hirano Shin’ichi、Okawa Hirotada、Sasaki Misao
- Journal Title
  
  Physical Review D
  
  Volume: 105 Issue: 10 Pages: 103538-103538
- DOI
  10.1103/physrevd.105.103538
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PLANNED-20H05853, KAKENHI-PROJECT-19H01895, KAKENHI-PUBLICLY-20H04727
[Journal Article] The First Three Seconds: a Review of Possible Expansion Histories of the Early Universe2021
- Author(s)
  Allahverdi Rouzbeh、... Takahashi Tomo、.... et al
- Journal Title
  
  The Open Journal of Astrophysics
  
  Volume: 4 Issue: 1 Pages: 1-1
- DOI
  10.21105/astro.2006.16182
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03874, KAKENHI-PROJECT-19K03876, KAKENHI-PUBLICLY-19H05114, KAKENHI-PUBLICLY-20H04750, KAKENHI-PUBLICLY-19H05110, KAKENHI-PROJECT-19H01895, KAKENHI-ORGANIZER-17H06357
[Journal Article] Backreaction of mass and angular momentum accretion on black holes: General formulation of metric perturbations and application to the Blandford-Znajek process2021
- Author(s)
  Kimura Masashi、Harada Tomohiro、Naruko Atsushi、Toma Kenji
- Journal Title
  
  Progress of Theoretical and Experimental Physics
  
  Volume: 2021 Issue: 9 Pages: 1-26
- DOI
  10.1093/ptep/ptab101
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H01891, KAKENHI-PUBLICLY-20H04746, KAKENHI-PROJECT-19K03876, KAKENHI-PLANNED-20H05852, KAKENHI-PLANNED-20H05853, KAKENHI-PROJECT-21H04488, KAKENHI-PROJECT-18H01245, KAKENHI-PROJECT-19H01895, KAKENHI-ORGANIZER-17H06357
[Journal Article] Stability of small charged anti-de Sitter black holes in the Robin boundary2021
- Author(s)
  Katagiri Takuya、Harada Tomohiro
- Journal Title
  
  Classical and Quantum Gravity
  
  Volume: 38 Issue: 13 Pages: 135026-135026
- DOI
  10.1088/1361-6382/abfed6
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PROJECT-19H01895
[Journal Article] Spins of Primordial Black Holes Formed in the Radiation-dominated Phase of the Universe: First-order Effect2021
- Author(s)
  Harada Tomohiro、Yoo Chul-Moon、Kohri Kazunori、Koga Yasutaka、Monobe Takeru
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 908 Issue: 2 Pages: 140-140
- DOI
  10.3847/1538-4357/abd9b9
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PUBLICLY-19H05114, KAKENHI-PUBLICLY-20H04750, KAKENHI-PROJECT-19J12007, KAKENHI-PROJECT-19H01895, KAKENHI-ORGANIZER-17H06357
[Journal Article] Uniqueness of static, isotropic low- pressure solutions of the Einstein-Vlasov system2020
- Author(s)
  Tomohiro Harada, Maximilian Thaller
- Journal Title
  
  Lett. Math. Phys.
  
  Volume: 110 Issue: 7 Pages: 1877-1901
- DOI
  10.1007/s11005-020-01284-y
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Journal Article] Sonic point and photon surface2020
- Author(s)
  Tsuchiya Masataka、Yoo Chul-Moon、Koga Yasutaka、Harada Tomohiro
- Journal Title
  
  Physical Review D
  
  Volume: 102 Issue: 4 Pages: 044057-044057
- DOI
  10.1103/physrevd.102.044057
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PROJECT-19H01895, KAKENHI-PROJECT-19J12007
[Journal Article] Threshold of primordial black hole formation in nonspherical collapse2020
- Author(s)
  Yoo Chul-Moon、Harada Tomohiro、Okawa Hirotada
- Journal Title
  
  Physical Review D
  
  Volume: 102 Issue: 4
- DOI
  10.1103/physrevd.102.043526
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PROJECT-19H01895
[Journal Article] Escape probability of a photon emitted near the black hole horizon2020
- Author(s)
  Kota Ogasawara, Takahisa Igata, Tomohiro Harada, Umpei Miyamoto
- Journal Title
  
  Physical Review D
  
  Volume: 101 Issue: 4 Pages: 1-11
- DOI
  10.1103/physrevd.101.044023
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K03652, KAKENHI-PROJECT-19K03876, KAKENHI-PROJECT-19K14715, KAKENHI-PROJECT-18J10275
[Journal Article] Extremal Kerr white holes as a source of ultrahigh energy particles2020
- Author(s)
  Patil Mandar、Harada Tomohiro
- Journal Title
  
  Physical Review D
  
  Volume: 102 Issue: 2
- DOI
  10.1103/physrevd.102.024002
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PROJECT-19H01895
[Journal Article] Thin-Shell Wormholes in Einstein and Einstein-Gauss-Bonnet Theories of Gravity2020
- Author(s)
  Kokubu Takafumi、Harada Tomohiro
- Journal Title
  
  Universe
  
  Volume: 6 Issue: 11 Pages: 197-197
- DOI
  10.3390/universe6110197
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Journal Article] Abundance of primordial black holes in peak theory for an arbitrary power spectrum2020
- Author(s)
  Yoo Chul-Moon、Harada Tomohiro、Hirano Shin’ichi、Kohri Kazunori
- Journal Title
  
  Progress of Theoretical and Experimental Physics
  
  Volume: 2021 Issue: 1 Pages: 1300-1300
- DOI
  10.1093/ptep/ptaa155
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PUBLICLY-19H05114, KAKENHI-PUBLICLY-20H04750, KAKENHI-PROJECT-19H01895, KAKENHI-ORGANIZER-17H06357
[Journal Article] Dynamical transition from a naked singularity to a black hole2020
- Author(s)
  Hioki Kenta、Harada Tomohiro
- Journal Title
  
  International Journal of Modern Physics A
  
  Volume: 35 Issue: 31 Pages: 2050201-2050201
- DOI
  10.1142/s0217751x20502012
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K03876
[Journal Article] Particle creation in gravitational collapse to a horizonless compact object2019
- Author(s)
  Harada Tomohiro、Cardoso Vitor、Miyata Daiki
- Journal Title
  
  Physical Review D
  
  Volume: 99 Issue: 4
- DOI
  10.1103/physrevd.99.044039
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Journal Article] Stability of null orbits on photon spheres and photon surfaces2019
- Author(s)
  Koga Yasutaka、Harada Tomohiro
- Journal Title
  
  Physical Review D
  
  Volume: 100 Issue: 6
- DOI
  10.1103/physrevd.100.064040
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K03876, KAKENHI-PROJECT-19J12007
[Journal Article] Bursts of particle creation in gravitational collapse to a horizonless compact object2019
- Author(s)
  Kokubu Takafumi、Harada Tomohiro
- Journal Title
  
  Physical Review D
  
  Volume: 100 Issue: 8
- DOI
  10.1103/physrevd.100.084028
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K03876
[Journal Article] On the stability of a superspinar2018
- Author(s)
  Nen-ichi Nakao, Pankaj S. Joshi, Jun-Qi Guo, Prashant Kocherlakota, Hideyuki Tagoshi, Tomohiro Harada, Mandar Patil, Andrzej Krolak
- Journal Title
  
  Physics Letter B
  
  Volume: 780 Pages: 410-413
- DOI
  10.1016/j.physletb.2018.03.014
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K05081, KAKENHI-PROJECT-26400282
[Journal Article] Complete conformal classification of the Friedmann-Lematre-Robertson-Walker solutions with a linear equation of state2018
- Author(s)
  Harada Tomohiro、Carr B J、Igata Takahisa
- Journal Title
  
  Classical and Quantum Gravity
  
  Volume: 35 Issue: 10 Pages: 105011-105011
- DOI
  10.1088/1361-6382/aab99f
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400282
[Journal Article] Energy emission from high curvature region and its backreation2018
- Author(s)
  Kokubu Takafumi, Jhingan Sanjay, Harada Tomohiro
- Journal Title
  
  Physical Review D
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26400282
[Journal Article] Light curves of light rays passing through a wormhole2017
- Author(s)
  Naoki Tsukamoto, Tomohiro Harada
- Journal Title
  
  Phys.Rev.
  
  Volume: D95 Issue: 2
- DOI
  10.1103/physrevd.95.024030
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400282
[Journal Article] 3D Simulation of Spindle Gravitational Collapse of a Collisionless Particle System2017
- Author(s)
  Chul-Moon Yoo, Tomohiro Harada, Hirotada Okawa
- Journal Title
  
  Classical an Quantum Gravity
  
  Volume: 34 Issue: 10 Pages: 105010-105010
- DOI
  10.1088/1361-6382/aa6ad5
- Peer Reviewed
- Data Source
  KAKENHI-PUBLICLY-16H01097, KAKENHI-PROJECT-16K17688, KAKENHI-PROJECT-26400282
[Journal Article] Escape probability of the super-Penrose process2017
- Author(s)
  Kota Ogasawara, Tomohiro Harada, Umpei Miyamoto, Takahisa Igata, Mandar Patil
- Journal Title
  
  Physical Review D
  
  Volume: 95 (2017) no.12, 124019 Issue: 12 Pages: 1-4
- DOI
  10.1103/physrevd.95.124019
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K05086, KAKENHI-PROJECT-26400282
[Journal Article] Spins of primordial black holes formed in the matter-dominated phase of the Universe2017
- Author(s)
  Tomohiro Harada, Chul-Moon Yoo, Kazunori Kohri, Ken-ichi Nakao
- Journal Title
  
  Physical Review D
  
  Volume: 96 Issue: 8 Pages: 083517-083517
- DOI
  10.1103/physrevd.96.083517
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16K17688, KAKENHI-PLANNED-15H05889, KAKENHI-PUBLICLY-16H00877, KAKENHI-PUBLICLY-16H01097, KAKENHI-PROJECT-17H01131, KAKENHI-PROJECT-26247042, KAKENHI-PROJECT-26400282, KAKENHI-PLANNED-17H06359
[Journal Article] Self-similar motion of a Nambu-Goto string2016
- Author(s)
  Takahisa Igata, Tsuyoshi Houri, Tomohiro Harada
- Journal Title
  
  Physical Review D
  
  Volume: 94 Issue: 6 Pages: 064029-064029
- DOI
  10.1103/physrevd.94.064029
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-14J01237, KAKENHI-PROJECT-26400282
[Journal Article] Primordial black hole formation in the matter-dominated phase of the Universe2016
- Author(s)
  T.~Harada, C.~M.~Yoo, K.~Kohri, K.~i.~Nakao and S.~Jhingan
- Journal Title
  
  Astrophysical Journal
  
  Volume: 833 Issue: 1 Pages: 61-61
- DOI
  10.3847/1538-4357/833/1/61
- Peer Reviewed / Acknowledgement Compliant / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-15H05889, KAKENHI-PUBLICLY-16H00877, KAKENHI-PUBLICLY-16H01097, KAKENHI-PROJECT-26247042, KAKENHI-PROJECT-25400265, KAKENHI-PROJECT-26400282, KAKENHI-PROJECT-16K17688
[Journal Article] Vacuum excitation by sudden appearance and disappearance of a Dirichlet wall in a cavity2016
- Author(s)
  Tomohiro Harada, Shunichiro Kinoshita, Umpei Miyamoto
- Journal Title
  
  Physical Review D
  
  Volume: 94 Issue: 2 Pages: 1-17
- DOI
  10.1103/physrevd.94.025006
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K05086, KAKENHI-PROJECT-26400282
[Journal Article] High efficiency of collisional Penrose process requires heavy particle production2016
- Author(s)
  K. Ogasawara, T. Harada, and U. Miyamoto
- Journal Title
  
  Physical Review D
  
  Volume: 93 Issue: 4 Pages: 044054-044054
- DOI
  10.1103/physrevd.93.044054
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K05086, KAKENHI-PROJECT-26400282
[Journal Article] Correspondence between sonic points of ideal photon gas accretion and photon spheres2016
- Author(s)
  Yasutaka Koga and Tomohiro Harada
- Journal Title
  
  Phys. Rev.
  
  Volume: D94 Issue: 4
- DOI
  10.1103/physrevd.94.044053
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26400282
[Journal Article] Infinite efficiency of the collisional Penrose process2016
- Author(s)
  Mandar Patil, Tomohiro Harada, Ken-ichi Nakao, Pankaj S. Joshi, Masashi Kimura
- Journal Title
  
  Physical Review D
  
  Volume: 93 Issue: 10
- DOI
  10.1103/physrevd.93.104015
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25400265, KAKENHI-PROJECT-26400282
[Journal Article] Spherical and nonspherical models of primordial black hole formation: exact solutions2016
- Author(s)
  Tomohiro Harada and Sanjay Jhingan
- Journal Title
  
  Prog.Theor.Exp.Phys.
  
  Volume: 2016 Issue: 9 Pages: 093E04-093E04
- DOI
  10.1093/ptep/ptw123
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26400282
[Journal Article] Consistent analytic approach to the efficiency of collisional Penrose process2016
- Author(s)
  Tomohiro Harada, Kota Ogasawara, Umpei Miyamoto
- Journal Title
  
  Physical Review D
  
  Volume: 94 Issue: 2 Pages: 1-8
- DOI
  10.1103/physrevd.94.024038
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K05086, KAKENHI-PROJECT-26400282
[Journal Article] Timescale for trans-Planckian collision in Kerr spacetime2015
- Author(s)
  Mandar Patil, Pankaj S. Joshi, Ken-ichi Nakao, Masashi Kimura, Tomohiro Harada
- Journal Title
  
  Europhysics Letters
  
  Volume: 110 Issue: 3 Pages: 30004-30004
- DOI
  10.1209/0295-5075/110/30004
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25400265, KAKENHI-PROJECT-26400282
[Journal Article] Does the Gauss- Bonnet term stabilize wormholes?2015
- Author(s)
  Takafumi Kokubu, Hideki Maeda and Tomohiro Harada
- Journal Title
  
  Class. Quant. Grav.
  
  Volume: 32 Issue: 23 Pages: 235021-235021
- DOI
  10.1088/0264-9381/32/23/235021
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26400282
[Journal Article] Negative tension branes as sta- ble thin shell wormholes2015
- Author(s)
  Takafumi Kokubu and Tomohiro Harada
- Journal Title
  
  Class. Quant. Grav.
  
  Volume: 32 Issue: 20 Pages: 205001-205001
- DOI
  10.1088/0264-9381/32/20/205001
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26400282
[Journal Article] The separate universe problem: 40 years on2015
- Author(s)
  B. J. Carr and Tomohiro Harada
- Journal Title
  
  Phys. Rev. D
  
  Volume: 91(8) Issue: 8
- DOI
  10.1103/physrevd.91.084048
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26400282
[Journal Article] Cosmological long-wavelength solutions and primordial black hole formation2015
- Author(s)
  Tomohiro Harada, Chul-Moon Yoo, Tomohiro Nakama and Yasutaka Koga
- Journal Title
  
  Phys. Rev. D
  
  Volume: 91(8) Issue: 8 Pages: 1-25
- DOI
  10.1103/physrevd.91.084057
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26400282, KAKENHI-PROJECT-13J08199
[Journal Article] Black holes as particle accelerators: a brief review2014
- Author(s)
  Tomohiro Harada and Masashi Kimura
- Journal Title
  
  Class. Quant. Grav.
  
  Volume: 31 Issue: 24 Pages: 243001-243001
- DOI
  10.1088/0264-9381/31/24/243001
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26400282
[Journal Article] How small can an over-spinning body in general relativity?2014
- Author(s)
  Ken-ichi Nakao, Masashi Kimura, Tomohiro Harada, Mandar Patil, Pankaj S. Joshi
- Journal Title
  
  Physical Review D
  
  Volume: 90 Issue: 12 Pages: 124079-124079
- DOI
  10.1103/physrevd.90.124079
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-25400265, KAKENHI-PROJECT-26400282
[Journal Article] Wave Effect in Gravitational Lensing by the Ellis Wormhole2013
- Author(s)
  Chul-Moon Yoo, Tomohiro Harada, Naoki Tsukamoto
- Journal Title
  
  Physical Review D
  
  Volume: 未定
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23654082
[Journal Article] Renormalization group approach to Einstein-Rosen waves2013
- Author(s)
  Tomohiro Harada and Sanjay Jhingan
- Journal Title
  
  Phys. Rev.
  
  Volume: D87 Issue: 6 Pages: 64043-64043
- DOI
  10.1103/physrevd.87.064043
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190, KAKENHI-PROJECT-23654082
[Journal Article] Weak cosmic censorship in gravitational collapse with astrophysical parameter values2013
- Author(s)
  Umpei Miyamoto, Sanjay Jhingan, Tomohiro Harada
- Journal Title
  
  Progress of Theoretical and Experimental Physics
  
  Volume: 未定
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Signed magnification sums for spherical lenses2013
- Author(s)
  Naoki Tsukamoto and Tomohiro Harada
- Journal Title
  
  Physical Review D
  
  Volume: 87
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23654082
[Journal Article] ブラックホールは天然の粒子加速器になるか2013
- Author(s)
  原田知広、木村匡志
- Journal Title
  
  日本物理学
  
  Volume: 第68巻第2号 Pages: 102-102
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Wave Effect in Gravitational Lensing by the Ellis Wormhole2013
- Author(s)
  Chul-Moon Yoo, Tomohiro Harada, Naoki Tsukamoto
- Journal Title
  
  Phys. Rev.
  
  Volume: 未定
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Wave Effect in Gravitational Lensing by the Ellis Wormhole2013
- Author(s)
  Chul-Moon Yoo, Tomohiro Harada and Naoki Tsukamoto
- Journal Title
  
  Phys. Rev
  
  Volume: D87(8) Issue: 8
- DOI
  10.1103/physrevd.87.084045
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23654082
[Journal Article] Signed magnification sums for general spherical lenses2013
- Author(s)
  Naoki Tsukamoto and Tomohiro Harada
- Journal Title
  
  Phys. Rev. D
  
  Volume: 87(2) Pages: 6-6
- URL
  http://dx.doi.org/10.1103/PhysRevD.87.024024
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Renormalization groupapproach to Einstein-Rosen waves2013
- Author(s)
  Tomohiro Harada and Sanjay Jhingan
- Journal Title
  
  Phys. Rev. D
  
  Volume: 87(6) Pages: 7-7
- URL
  http://dx.doi.org/10.1103/PhysRevD.87.064043
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Threshold of primordial black hole formation2013
- Author(s)
  Tomohiro Harada, Chul-Moon Yoo, and Kazunori Kohri
- Journal Title
  
  Phys. Rev. D
  
  Volume: 88 Issue: 8 Pages: 84051-84051
- DOI
  10.1103/physrevd.88.084051
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-21111006, KAKENHI-PROJECT-22244030, KAKENHI-PROJECT-23540327, KAKENHI-PROJECT-23654082
[Journal Article] Weak cosmic censorship in gravitational collapse with astrophysical parameter values2013
- Author(s)
  Umpei Miyamoto, Sanjay Jhingan, Tomohiro Harada
- Journal Title
  
  Progress of Theoretical and Experimental Physics
  
  Volume: 未定
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23654082
[Journal Article] Signed magnification sums for general spherical lenses2013
- Author(s)
  Naoki Tsukamoto and Tomohiro Harada
- Journal Title
  
  Phys. Rev.
  
  Volume: D87 Issue: 2 Pages: 24024-24024
- DOI
  10.1103/physrevd.87.024024
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190, KAKENHI-PROJECT-23654082
[Journal Article] Can we distinguish between black holes and wormholes by their Einstein ring systems?2012
- Author(s)
  Naoki Tsukamoto, Tomohiro Harada and Kohji Yajima
- Journal Title
  
  Phys. Rev.
  
  Volume: D86 Issue: 10 Pages: 104062-104062
- DOI
  10.1103/physrevd.86.104062
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190, KAKENHI-PROJECT-23654082
[Journal Article] Can we distinguish between black hole and wormhole by their Einstein ring systems?2012
- Author(s)
  Naoki Tsukamoto, Tomohiro Harada, and Koji Yajima
- Journal Title
  
  Physical Review D
  
  Volume: 86
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23654082
[Journal Article] Effect of a Weak Electromagnetic Field on Particle Acceleration by a Rotating Black Hole2012
- Author(s)
  T. Igata, T. Harada, M. Kimura
- Journal Title
  
  Physical Review D
  
  Volume: 85 Issue: 10 Pages: 104028-104028
- DOI
  10.1103/physrevd.85.104028
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-11J02182, KAKENHI-PROJECT-11J08747, KAKENHI-PROJECT-21740190, KAKENHI-PROJECT-23654082
[Journal Article] Effect of a weak electromagnetic field on particle acceleration by a rotating black hole2012
- Author(s)
  Takahisa Igata, Tomohiro Harada and Masashi Kimura
- Journal Title
  
  Phys. Rev. D
  
  Volume: 85(10) Pages: 11-11
- URL
  http://dx.doi.org/10.1103/PhysRevD.85.104028
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Can we distinguish between black holes and wormholes by their Einstein ring systems2012
- Author(s)
  Naoki Tsukamoto, Tomohiro Harada and Kohji Yajima
- Journal Title
  
  Phys. Rev. D
  
  Volume: 86(10) Pages: 6-6
- URL
  http://dx.doi.org/10.1103/PhysRevD.86.104062
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Upper limits of particle emission from high-energy collision and reaction near a maximally rotating Kerr black hole2012
- Author(s)
  Tomohiro Harada, Hiroya Nemoto and Umpei Miyamoto
- Journal Title
  
  Phys. Rev.
  
  Volume: D86 Issue: 2 Pages: 024027-069902
- DOI
  10.1103/physrevd.86.024027
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190, KAKENHI-PROJECT-23654082
[Journal Article] Upperlimits of particle emission from high-energy collision and reaction near a maximally rotating Kerr black hole2012
- Author(s)
  Tomohiro Harada, Hiroya Nemoto and Umpei Miyamoto
- Journal Title
  
  Phys. Rev. D
  
  Volume: 86(2) Pages: 1-1
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Collision of an object in the transition from adiabatic inspiral to plunge around a Kerr black hole2011
- Author(s)
  Tomohiro Harada and Masashi Kimura
- Journal Title
  
  Phys. Rev. D
  
  Volume: 84(12) Pages: 8-8
- URL
  http://dx.doi.org/10.1103/PhysRevD.84.124032
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Uniqueness of static spherically symmetric vacuum solutions in the IR limit of nonrelativistic quantum gravity2011
- Author(s)
  Tomohiro Harada, Umpei Miyamoto and Naoki Tsukamoto
- Journal Title
  
  J. Phys.: Conf. Ser
  
  Volume: 314
- URL
  http://dx.doi.org/10.1088/1742-6596/314/1/012120
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Uniqueness of static spherically symmetric vacuum solutions in the IR limit of Horava-Lifshitz gravity2011
- Author(s)
  Tomohiro Harada, Umpei Miyamoto and Naoki Tsukamoto
- Journal Title
  
  Int. J.Mod. Phys.D
  
  Volume: 20(1) Pages: 111-118
- URL
  http://dx.doi.org/10.1142/S021827181101865
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Discretisation parameter and operator ordering in loop quantum cosmology with the cosmological constant2011
- Author(s)
  Tomo Tanaka, Fumitoshi Amemiya, Masahiro Shimano, Tomohiro Harada, Takashi Tamaki
- Journal Title
  
  Phys.Rev.D
  
  Volume: 83 Issue: 10
- DOI
  10.1103/physrevd.83.104049
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190, KAKENHI-PROJECT-23654082
[Journal Article] Uniqueness of static spherically symmetric vacuum solutions in the IR limit of Horava-Lifshitz gravity2011
- Author(s)
  Tomohiro Harada, Umpei Miyamoto, Naoki Tsukamoto
- Journal Title
  
  Int.J.Mod.Phys.D
  
  Volume: 20 Pages: 111-118
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Black hole candidates and the Kerr bound2011
- Author(s)
  Tomohiro Harada, Rohta Takahashi
- Journal Title
  
  J.Phys. :Conf.Ser.
  
  Volume: 314 Pages: 012084-012084
- DOI
  10.1088/1742-6596/314/1/012084
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Collision of an innermost stable circular orbit particle around a Kerrblack hole2011
- Author(s)
  Tomohiro Harada, Masashi Kimura
- Journal Title
  
  Phys.Rev.D
  
  Volume: 83
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Collision of an object in the transition from adiabatic inspiral to plunge around a Kerr black hole2011
- Author(s)
  原田知広, 木村匡志
- Journal Title
  
  Physical Review D
  
  Volume: 84 Issue: 12
- DOI
  10.1103/physrevd.84.124032
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-11J02182, KAKENHI-PROJECT-21740190, KAKENHI-PROJECT-23654082
[Journal Article] Collision of two general geodesic particles around a Kerr black hole2011
- Author(s)
  Tomohiro Harada and Masashi Kimura
- Journal Title
  
  Phys. Rev. D
  
  Volume: 83(8) Pages: 9-9
- URL
  http://dx.doi.org/10.1103/PhysRevD.83.084041
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Collision of an innermost stable circular orbit particle around a Kerr black hole2011
- Author(s)
  Tomohiro Harada and Masashi Kimura
- Journal Title
  
  Phys. Rev. D
  
  Volume: 83(2) Pages: 11-11
- URL
  http://dx.doi.org/10.1103/PhysRevD.83.024002
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Collision of two general geodesic particles around a Kerr black hole2011
- Author(s)
  Tomohiro Harada, Masashi Kimura
- Journal Title
  
  Phys.Rev.D
  
  Volume: 83 Issue: 8
- DOI
  10.1103/physrevd.83.084041
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190, KAKENHI-PROJECT-23654082
[Journal Article] Discretisation parameter and operator ordering in loop quantum cosmology with the cosmological constant2011
- Author(s)
  Tomo Tanaka, Fumitoshi Amemiya, Masahiro Shimano, Tomohiro Harada and Takashi Tamaki
- Journal Title
  
  Phys. Rev. D
  
  Volume: 83(10) Pages: 14-14
- URL
  http://dx.doi.org/10.1103/PhysRevD.83.104049
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Uniqueness of static spherically symmetric vacuum solutions in the IR limit of nonrelativistic quantum gravity2011
- Author(s)
  Tomohiro Harada, Umpei Miyamoto, Naoki Tsukamoto
- Journal Title
  
  J.Phys. :Conf.Ser.
  
  Volume: 314 Pages: 012120-012120
- DOI
  10.1088/1742-6596/314/1/012120
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Observational Testability of Kerr bound in X-ray Spectrum of Black-Hole Candidates2011
- Author(s)
  Rohta Takahashi and Tomohiro Harada
- Journal Title
  
  Class. Quant. Grav.
  
  Volume: 27(7) Pages: 21-21
- URL
  http://dx.doi.org/10.1088/0264-9381/27/7/075003
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Visible borders of spacetime generated by high-energy collisions2010
- Author(s)
  Ken-ichi Nakao, Tomohiro Harada and Umpei Miyamoto
- Journal Title
  
  Phys. Rev. D
  
  Volume: 82(12) Pages: 4-4
- URL
  http://dx.doi.org/10.1103/PhysRevD.82.121501
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Visible borders of spacetime generated by high-energy collisions2010
- Author(s)
  Ken-ichi Nakao, Tomohiro Harada, Umpei Miyamoto
- Journal Title
  
  Phys.Rev.D
  
  Volume: 82
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Can a primordial black hole or wormhole grow as fast as the universe2010
- Author(s)
  B.J. Carr, Tomohiro Harada and Hideki Maeda
- Journal Title
  
  Class. Quant. Grav.
  
  Volume: 27(18) Pages: 28-28
- URL
  http://dx.doi.org/10.1088/0264-9381/27/18/183101
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Can a primordial black hole or wormhole grow as fast as the universe?2010
- Author(s)
  B.J.Carr, Tomohiro Harada, Hideki Maeda
- Journal Title
  
  Class.Quant.Grav.
  
  Volume: 27
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Outflows from accreting super-spinars2010
- Author(s)
  Cosimo Bambi, Tomohiro Harada, Rohta Takahashi, Naoki Yoshida
- Journal Title
  
  Phys.Rev.D
  
  Volume: 81
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Black hole candidates and the Kerr bound2010
- Author(s)
  Tomohiro Harada and Rohta Takahashi
- Journal Title
  
  J. Phys.: Conf. Ser. (2011), as a contribution to the Proceedings of Spanish Relativity Meeting (ERE 2010): Gravity as a Crossroad in Physics
  
  Volume: 314 Pages: 6-10
- URL
  http://dx.doi.org/10.1088/1742-6596/314/1/012084
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Outflows from accreting super-spinars2010
- Author(s)
  Cosimo Bambi, Tomohiro Harada, RohtaTakahashi and Naoki Yoshida
- Journal Title
  
  Phys. Rev. D
  
  Volume: 81(10) Pages: 12-12
- URL
  http://dx.doi.org/10.1103/PhysRevD.81.104004
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Observational Testability of Kerr bound in X-ray Spectrum of Black-Hole Candidates2010
- Author(s)
  Rohta Takahashi, Tomohiro Harada
- Journal Title
  
  Class.Quant.Grav. 27
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Einstein-Rosen waves and the self-similarity hypothesis in cylindrical symmetry2009
- Author(s)
  Tomohiro Harada, Ken-ichi Nakao, Brien C.Nolan
- Journal Title
  
  Phys.Rev.D 80
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Observational constraints on a power spectrum from super-inflation in Loop Quantum Cosmology2009
- Author(s)
  Masahiro Shimano, Tomohiro Harada
- Journal Title
  
  Phys.Rev.D 80
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Self-similar black holes in an accelerated universe2009
- Author(s)
  Tomohiro Harada
- Journal Title
  
  AIP Conf.Proc. 1122
  
  Pages: 288-291
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] High-Speed Collapse of a Hollow Sphere of Type I Matter2009
- Author(s)
  Zahid Ahmed, Tomohiro Harada, Ken-ichi Nakao and M. Sharif
- Journal Title
  
  Class. Quantum Gray 26
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Cosmological wormholes2009
- Author(s)
  Hideki Maeda, Tomohiro Harada, B.J. Carr
- Journal Title
  
  Phys. Rev D79
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Self-similar black holes in an accelerated universe2009
- Author(s)
  Tomohiro Harada
- Journal Title
  
  AIP Conf. Proc. (Physics and Mathematics of Gravitation: the Proceedings of the Spanish Relativity Meeting 2008, 15 - 19 Sep 2008, Salamanca, Spain", ed. K.E. Kunze, M. Mars and M.A. Vazquez-Mozo, (American Insitute of Physics, New York, 2009))
  
  Volume: 1122 Pages: 288-291
- URL
  http://dx.doi.org/10.1063/1.3141296
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Observational constraints on a power spectru from super-inflation in Loop Quantum Cosmology2009
- Author(s)
  Masahiro Shimano and Tomohiro Harada,''
- Journal Title
  
  Phys. Rev. D
  
  Volume: 80(6) Pages: 17-17
- URL
  http://dx.doi.org/10.1103/PhysRevD.80.063538
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Relativistic Gravitational Collapse of a Cylindrical Shell of Dust II: SettlingDown Boundary Condition2009
- Author(s)
  Ken-ichi Nakao, Tomohiro Harada, Yasunari Kurita and Yoshiyuki Morisawa
- Journal Title
  
  Prog. Theor. Phys.
  
  Volume: 122(2) Pages: 521-541
- URL
  http://dx.doi.org/10.1143/PTP.122.521
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Cosmological wormholes2009
- Author(s)
  Hideki Maeda, Tomohiro Harada and B. J. Carr
- Journal Title
  
  Phys. Rev D79(4),044034
  
  Pages: 10-10
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] High-Speed Collapse of a Hollow Sphere of Type I Matter2009
- Author(s)
  Zahid Ahmed, Tomohiro Harada, Ken-ichi Nakao and M. Sharif
- Journal Title
  
  Class. Quantum Grav 26(3),035007
  
  Pages: 15-15
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Einstein-Rosen waves and the self-similarity hypothesis in cylindrical symmetry2009
- Author(s)
  Tomohiro Harada, Ken-ichi Nakao and Brien C. Nolan
- Journal Title
  
  Phys. Rev. D
  
  Volume: 80(2) Pages: 15-15
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Lemaitre-Tolman-Bondi collapse from the perspective of loop quantum gravity2009
- Author(s)
  Martin Bojowald, Tomohiro Harada and Rakesh Tibrewala
- Journal Title
  
  Phys. Rev D78
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Relativistic Gravitational Collapse of a Cylindrical Shell of Dust II : Settling Down Boundary Condition2009
- Author(s)
  Ken-ichi Nakao, Tomohiro Harada, Yasunari Kurita, Yoshiyuki Morisawa
- Journal Title
  
  Prog.Theor.Phys. 122
  
  Pages: 521-541
- NAID
  110007339479
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Singularities and self-similarity in gravitational collapse2009
- Author(s)
  Tomohiro Harada
- Journal Title
  
  Advanced Studies in Pure Mathematics 55
  
  Pages: 15-30
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Accretion process onto super-spinning objects2009
- Author(s)
  Cosimo Bambi, Katherine Freese, Tomohiro Harada, Rohta Takahashi, Naoki Yoshida
- Journal Title
  
  Phys.Rev.D 80
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Singularities and self-similarity in gravitational collapse2009
- Author(s)
  Tomohiro Harada
- Journal Title
  
  a plenary talk given at the Hayashibara Forum at IHES on Singularities, 20-23 Nov 2006, Bures-sur-Yvette, France, to appear in the Advanced Study in Pure Mathematics (掲載決定)
  
  Pages: 15-15
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Singularities and self-similarity in gravitational collapse'2009
- Author(s)
  Tomohiro Harada
- Journal Title
  
  a plenary talk given at the Hayashibara Forum at IHES on Singularities, 20-23 Nov 2006, Bures-sur-Yvette, France, Advanced Studies in Pure Mathematics
  
  Volume: 55 Pages: 15-30
- URL
  http://arxiv.org/abs/arXiv:0904.4770
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Accretion process onto super-spinning objects2009
- Author(s)
  Cosimo Bambi, Katherine Freese, Tomohiro Harada, Rohta Takahashi and Naoki Yoshida
- Journal Title
  
  Phys. Rev. D
  
  Volume: 80(10) Pages: 10-10
- URL
  http://dx.doi.org/10.1103/PhysRevD.80.104023
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Self-similar cosmological solutions with dark energy II : black holes, naked singularities and wormholes2008
- Author(s)
  Hideki Maeda, Tomohiro Harada and B. J. Carr
- Journal Title
  
  Phys. Rev D77(2),024023
  
  Pages: 12-12
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Black Holes in Scalar Field or Quintessential Cosmology2008
- Author(s)
  Tomohiro Harada
- Journal Title
  
  Proceedings of the Eleventh Marcel Grossmann Meeting on General Relativity
  
  Pages: 1113-1115
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Black Hole Evaporation in a Friedmann Universe2008
- Author(s)
  Tomohiro Harada
- Journal Title
  
  PRESS SECTION OF ICGA8, NARA WOMEN' S UNIVERSITY
  
  Pages: 21-22
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Asymptotically Friedmann self-similar scalar field solutions with potential2008
- Author(s)
  Masanori Kyo, Tomohiro Harada and Hideki Maeda
- Journal Title
  
  Phys. Rev D77(12),124036
  
  Pages: 10-10
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Lemaitre-Tolman-Bondi collapse from the perspective of loop quantum gravity2008
- Author(s)
  Martin Bojowald, Tomohiro Harada and Rakesh Tibrewala
- Journal Title
  
  Phys. Rev D78(6),064057
  
  Pages: 30-30
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Self-similar cosmological solutions with dark energy II: black holes, naked singularities and wormholes2008
- Author(s)
  Hideki Maeda, Tomohiro Harada and B.J. Carr
- Journal Title
  
  Phys. Rev. D 77
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Asymptotically Friedmann self-similar scalar field solutions with potential2008
- Author(s)
  Masanori Kyo, Tomohiro Harada and Hideki Maeda
- Journal Title
  
  Phys. Rev D77
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Self-similar Cosmological Solutions with Dark Energy I : Formalism and Asymptotic Analysis2008
- Author(s)
  Tomohiro Harada
- Journal Title
  
  PRESS SECTION OF ICGA8, NARA WOMEN' S UNIVERSITY
  
  Pages: 19-20
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Self-similar cosmological solutions with dark energy I: formulation and asymptotic analysis2008
- Author(s)
  Tomohiro Harada, Hideki Maeda and B.J. Carr
- Journal Title
  
  Phys. Rev. D 77
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Self-similar cosmological solutions with dark energy I : formulation and asymptotic analysis2008
- Author(s)
  Tomohiro Harada, Hideki Maeda and B. J. Carr
- Journal Title
  
  Phys. Rev D77(2),024022
  
  Pages: 13-13
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Analytical solutions for black-hole critical behaviour2007
- Author(s)
  Tomohiro Harada and Ashutosh Mahajan
- Journal Title
  
  Gen. Rel. Grav 39
  
  Pages: 1847-1854
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Relativistic Gravitational Collapse of Cylindrical Dust2007
- Author(s)
  Ken-ichi Nakao, Yasunari Kurita, Yoshiyuki Morisawa and Tomohiro Harada
- Journal Title
  
  Prog. Theor. Phys 117(1)
  
  Pages: 75-102
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Black Hole Evaporation in an Expanding Universe2007
- Author(s)
  Hiromi Saida, Tomohiro Harada and Hideki Maeda
- Journal Title
  
  Class. Quantum Grav. 24
  
  Pages: 4711-4732
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Critical Collapse of Einstein Cluster2007
- Author(s)
  Ashutosh Mahajan, Tomohiro Harada, Pankaj S. Joshi and Ken-ichi Nakao
- Journal Title
  
  Progress of Theoretical Physics 118
  
  Pages: 865-878
- NAID
  110006473317
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Critical Collapse of Einstein Cluster2007
- Author(s)
  Ashutosh Mahajan, Tomohiro Harada, Pankaj S. Joshi and Ken-ichi Nakao
- Journal Title
  
  Prog. Theor. Phys 118(5)
  
  Pages: 865-878
- NAID
  110006473317
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Analytical solutions for black-hole critical behaviour2007
- Author(s)
  Tomohiro Harada and Ashutosh Mahajan
- Journal Title
  
  Gen. Rel. Grav. 39
  
  Pages: 1847-1854
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Black Hole Evaporation in an Expanding Universe2007
- Author(s)
  Hiromi Saida, Tomohiro Harada and Hideki Maeda
- Journal Title
  
  Class. Quantum Grav 24(18)
  
  Pages: 4711-4732
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Non-existence of self-similar solutions containing a black hole in a universe with a stiff fluid or scalar field or quintessence2006
- Author(s)
  Tomohiro Harada, Hideki Maeda and B. J. Carr
- Journal Title
  
  Phys. Rev D74(2),024024
  
  Pages: 17-17
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Non-existence of self-similar solutions containing a black hole in a universe with a stiff fluid or scalar field or quintessence2006
- Author(s)
  Tomohiro Harada
- Journal Title
  
  Physical Review D74(2)
  
  Pages: 24024-24024
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Is there a black hole minimum mass?2006
- Author(s)
  Tomohiro Harada
- Journal Title
  
  Phys. Rev D74(8),084004
  
  Pages: 4-4
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Is there a black hole minimum mass?2006
- Author(s)
  Tomohiro Harada
- Journal Title
  
  Physical Review D74(8)
  
  Pages: 84004-84004
- Data Source
  KAKENHI-PROJECT-18740144
[Journal Article] Super-horizon primordial black holes2005
- Author(s)
  T.Harada
- Journal Title
  
  Physical Review D 72
  
  Pages: 44021-44021
- Data Source
  KAKENHI-PROJECT-14047212
[Journal Article] Weak cosmic censorship in gravitational collapse with astrophysical parameter values
- Author(s)
  Umpei Miyamoto, Sanjay Jhingan and Tomohiro Harada
- Journal Title
  
  Progress of Theoretical and Experimental Physics
  
  Volume: (accepted)
- URL
  http://dx.doi.org/10.1093/ptep/ptt027
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Journal Article] Wave Effect in Gravitational Lensing by the EllisWormhole
- Author(s)
  Chul-Moon Yoo, Tomohiro Harada and Naoki Tsukamoto
- Journal Title
  
  Physical Review D
  
  Volume: YITP-13-15 RUP-13-3, arXiv:1302.7170
- URL
  http://dx.doi.org/10.1103/PhysRevD.87.084045
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] 零質量スカラー場系における定常軸対称解について2024
- Author(s)
  原田知広
- Organizer
  ブラックホール磁気圏研究会 2024
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Revisiting compaction functions for primordial black hole formation2024
- Author(s)
  Tomohiro Harada
- Organizer
  Gravity and Cosmology 2024
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] The periapsis shift of a quasi-circular orbit in a static spherically symmetric spacetime and the active gravitational mass density2023
- Author(s)
  Tomohiro Harada
- Organizer
  XV International Conference on Gravitation, Astrophysics and Cosmology (ICGAC15)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Periapsis shift of a quasi-circular orbit in static spherically symmetric spacetimes and the active gravitational mass density2023
- Author(s)
  原田知広
- Organizer
  第24回特異点研究会
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Primordial black hole formation from cosmological perturbations: recent developments2023
- Author(s)
  Tomohiro Harada
- Organizer
  Future Perspectives on Primordial Black Holes
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] 一般的な静的球対称時空における準円軌道の近点移動2023
- Author(s)
  原田知広、伊形尚久、斉田浩見、孝森洋介
- Organizer
  日本天文学会2023年春季大会
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Compaction function revisited2023
- Author(s)
  Tomohiro Harada
- Organizer
  Dynamics of Primordial Black Hole Formation
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] 静的球対称時空における準円軌道の近点移動の一般公式と能動的重力質量密度2023
- Author(s)
  原田知広
- Organizer
  日本物理学会第78回年次大会
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Periapsis shift of a quasi-circular orbit in a static spherically symmetric spacetime and the active gravitational mass density2023
- Author(s)
  Tomohiro Harada
- Organizer
  Black Hole and Gravitational Waves -- from modified theories of gravity to data analysis --
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Revisiting compaction functions for primordial black hole formation2023
- Author(s)
  Tomohiro Harada
- Organizer
  Focus Week on Primordial Black Holes
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Revisiting compaction functions for primordial black hole formation2023
- Author(s)
  Tomohiro Harada
- Organizer
  The 32nd Workshop on General Relativity and Gravitation in Japan
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Primordial black hole formation from cosmological perturbations2023
- Author(s)
  Tomohiro Harada
- Organizer
  Gravitational Wave Probes of Physics Beyond Standard Model
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Thakurta 計量は宇宙論的ブラックホールを記述しない2022
- Author(s)
  原田知広、前田秀基、佐藤琢磨
- Organizer
  日本物理学会2022年秋季大会
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Complete classification of the FLRW solutions with linear equation of state: p.p. curvature singularities for general geodesics2022
- Author(s)
  Tomohiro Harada
- Organizer
  Gravity: Current challenges in black hole physics and cosmology
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] FLRW解の共形境界の分類：線形状態方程式の場合II2022
- Author(s)
  原田知広、伊形尚久、佐藤琢磨、Bernard Carr
- Organizer
  日本物理学会第７７回年次大会
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Complete classification of the FLRW solutions with linear equation of state: p.p. curvature singularities for general geodesics2022
- Author(s)
  Tomohiro Harada
- Organizer
  The 23rd International Conference on General Relativity and Gravitation
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Periapsis shift in a general static spherically symmetric spacetime2022
- Author(s)
  Tomohiro Harada
- Organizer
  The 31st Workshop on General Relativity and Gravitation in Japan
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] 静的球対称時空における近点移動2022
- Author(s)
  原田知広
- Organizer
  ブラックホール磁気圏研究会2022
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] 輻射優勢期に形成される原始ブラックホールのスピンII2021
- Author(s)
  原田知広、柳哲文、郡和範、古賀泰敬、物部武瑠
- Organizer
  日本物理学会第76回年次大会
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] FLRW解の共形分類II2021
- Author(s)
  原田知広
- Organizer
  第22回特異点研究会
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] ペンローズ過程と粒子衝突2021
- Author(s)
  原田知広
- Organizer
  日本物理学会第76回年次大会
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Spins of primordial black holes formed in the radiation-dominated phase of the universe: first-order effect2021
- Author(s)
  Tomohiro Harada
- Organizer
  The 30th Workshop on General Relativity and Gravitation in Japan
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] FLRW解の共形境界の分類：線形状態方程式の場合2021
- Author(s)
  原田知広、伊形尚久、佐藤琢磨
- Organizer
  日本物理学会2021年秋季大会
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Spins of primordial black holes formed in the radiation-dominated phase of the universe: first-order effect2021
- Author(s)
  Tomohiro Harada
- Organizer
  The KEK-PH + KEK-Cosmo joint workshop on “Primordial Black Holes”
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Stability of charged AdS black holes in the Robin boundary2020
- Author(s)
  Tomohiro Harada
- Organizer
  Online JGRG workshop 2020
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] 輻射優勢期に形成される原始ブラックホールのスピン2020
- Author(s)
  原田知広、柳哲文、郡和範、古賀泰敬、物部武瑠
- Organizer
  日本物理学会2020年秋季大会
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Primordial Black Holes: Mass and Spin2020
- Author(s)
  Tomohiro Harada
- Organizer
  7th Korea-Japan Workshop on Dark Energy: Maeda's Universe
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] 原始ブラックホールのスピンについて2019
- Author(s)
  原田知広、柳哲文、郡和範
- Organizer
  日本物理学会2019年秋季大会
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] 原始ブラックホールの形成2019
- Author(s)
  原田知広
- Organizer
  日本物理学会2019年秋季大会
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] 地平面のないコンパクト天体への重力崩壊におけるバースト的粒子生成2019
- Author(s)
  國分隆文、原田知広
- Organizer
  日本物理学会2019年秋季大会
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Particle Creation by Horizonless Compact Objects2019
- Author(s)
  Tomohiro Harada
- Organizer
  International Workshop on Astrophysics and Cosmology
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Formation of Primordial Black Holes2019
- Author(s)
  Tomohiro Harada
- Organizer
  International Workshop on Astrophysics and Cosmology
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Effect of Inhomogeneity on Primordial Black Hole Forma- tion in the Matter Dominated Era2019
- Author(s)
  Tomohiro Harada
- Organizer
  Focus Week on Primordial Black Holes
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Particle Creation In Gravitational Collapse To A Horizon- less Compact Object2019
- Author(s)
  Tomohiro Harada
- Organizer
  22nd International Conference on General Relativity and Gravitation
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Particle creation in gravitational collapse to a horizonless compact object2019
- Author(s)
  Tomohiro Harada
- Organizer
  29th Workshop on General Relativity and Gravitation in Japan
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Particle creation in gravitational collapse to a horizon- less compact object2019
- Author(s)
  Tomohiro Harada
- Organizer
  19th Lomonosov Conference on Elementary Particle Physics
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03876
[Presentation] Primordial black holes formed in the matter-dominated era2018
- Author(s)
  Tomohiro Harada
- Organizer
  International Workshop "Gravity and Cosmology 2018"
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] 原始ブラックホールについて2018
- Author(s)
  原田知広
- Organizer
  ブラックホール磁気圏研究会2018
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] FLRW解の共形構造の完全分類：線形状態方程式の場合2018
- Author(s)
  原田知広、Bernard J. Carr、伊形尚久
- Organizer
  日本物理学会2018年年次大会
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] Formation of primordial black holes from primordial fluctuations2017
- Author(s)
  Tomohiro Harada
- Organizer
  Focus Week on Primordial Black Holes
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] 原始ブラックホールの形成2017
- Author(s)
  原田知広
- Organizer
  第30回理論懇シンポジウム
- Invited
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] 物質優勢期における原始ブラックホール形成2017
- Author(s)
  原田知広、柳哲文、郡和範、中尾憲一、Sanjay Jhingan
- Organizer
  日本物理学会2017年年次大会
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] Spins of primordial black holes formed in the matter-dominated era2017
- Author(s)
  Tomohiro Harada
- Organizer
  International Symposium on Cosmology and Particle Astrophysics "CosPA 2017"
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] Spins of primordial black holes formed in the matter-dominated phase of the Universe2017
- Author(s)
  Tomohiro Harada
- Organizer
  Workshop on "Gravitational Dynamics and Black Holes"
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] 物質優勢期における原始ブラックホール形成2017
- Author(s)
  原田知広、柳哲文、郡和範、中尾憲一、Sanjay Jhingan
- Organizer
  日本物理学会2017年年次大会
- Place of Presentation
  大阪大学（大阪府豊中市）
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] Spins of primordial black holes formed in the matter-dominated era2017
- Author(s)
  Tomohiro Harada
- Organizer
  The 27th Workshop on General Relativity and Gravitation in Japan
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] FLRW解について2017
- Author(s)
  原田知広
- Organizer
  第19回特異点研究会
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] 原始ブラックホール形成と箍予想2016
- Author(s)
  原田知広
- Organizer
  第18回特異点研究会
- Place of Presentation
  立教大学（東京都豊島区）
- Year and Date
  2016-12-27
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] 楕円体の重力崩壊のブラックホール形成条件2016
- Author(s)
  原田知広、Sanjay Jhingan、郡和範、中尾憲一、柳哲文
- Organizer
  日本物理学会2016年秋季大会
- Place of Presentation
  宮崎大学（宮崎県宮崎市）
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] 原始ブラックホールの非球対称形成モデル：厳密解2016
- Author(s)
  原田知広、Sanjay Jhingan
- Organizer
  日本物理学会2016年年次大会
- Place of Presentation
  東北学院大学（宮城県仙台市）
- Year and Date
  2016-03-19
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] PBHの非球対称形成モデル2016
- Author(s)
  原田知広
- Organizer
  第17回特異点研究会「特異点と時空、および関連する物理」
- Place of Presentation
  慶應義塾大学（神奈川県横浜市）
- Year and Date
  2016-01-09
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] ブラックホール周辺：衝突Penrose過程・光子球／音速点対応2016
- Author(s)
  原田知広
- Organizer
  ブラックホール磁気圏研究会
- Place of Presentation
  ホテルマウントレースイ（北海道夕張市）
- Year and Date
  2016-03-02
- Invited
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] Primordial black hole formation in a matter-dominated universe2016
- Author(s)
  Tomohiro Harada
- Organizer
  The 26th Workshop on General Relativity and Gravitation in Japan
- Place of Presentation
  大阪市立大学（大阪府大阪市）
- Year and Date
  2016-10-24
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] Correspondence between sonic points of ideal photon gas accretion and photon spheres2016
- Author(s)
  Tomohiro Harada
- Organizer
  the 21st International Meeting on General Relativity and Gravitation
- Place of Presentation
  Columbia University　（アメリカ合州国ニューヨーク市）
- Year and Date
  2016-07-10
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] Can an over-spinning Kerr geometry be the source of ultra-high energy cosmic rays and neutrinos?2016
- Author(s)
  原田知広
- Organizer
  第17回特異点研究会「特異点と時空、および関連する物理」
- Place of Presentation
  慶應義塾大学（神奈川県横浜市）
- Year and Date
  2016-01-09
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] 宇宙論的非線形ゆらぎと原始ブラックホール形成2015
- Author(s)
  原田知広（立教大）、柳哲文（名大）、中間智弘（東大）、古賀恭敬（立教大）
- Organizer
  日本物理学会2015年年次大会
- Place of Presentation
  早稲田大学（東京都新宿区）
- Year and Date
  2015-03-24
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] Primordial black hole formation from cosmological fluctuations2015
- Author(s)
  Tomohiro Harada
- Organizer
  Hot Topics in General Relativity and Gravitation 2
- Place of Presentation
  Quy Nhon, Vietnam
- Year and Date
  2015-08-09
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] High energy particle collision and collisional Penrose process near a Kerr black hole2015
- Author(s)
  Tomohiro Harada
- Organizer
  One Hundred Years of Strong Gravity
- Place of Presentation
  Instituto Superior Tecnico in Lisbon, Lisbon, Portugal
- Year and Date
  2015-06-10
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] Szekeres解の宇宙物理学への応用2015
- Author(s)
  原田知広、Sanjay Jhingan
- Organizer
  日本物理学会2015年秋季大会
- Place of Presentation
  大阪市立大学（大阪府大阪市）
- Year and Date
  2015-09-25
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] 原始ブラックホール形成の閾値について2014
- Author(s)
  原田知広、柳哲文、郡和範
- Organizer
  日本物理学会第69回年次大会
- Place of Presentation
  東海大学
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] 漸近的準一様解について2014
- Author(s)
  原田知広（立教大）、柳哲文（名大）
- Organizer
  日本物理学会2014年秋季大会
- Place of Presentation
  佐賀大学（佐賀県佐賀市）
- Year and Date
  2014-09-21
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] Einstein-Rosen波に対する繰り込み群的アプローチ2013
- Author(s)
  原田知広、Sanjay Jhingan
- Organizer
  日本物理学会2013年秋季大会
- Place of Presentation
  高知大学
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] 分離宇宙条件の一般化へ向けて2013
- Author(s)
  原田知広(立教大理・准教授)Bernard J. Carr (ロンドン大クインメアリ校)
- Organizer
  日本物理学会第68回年次大会
- Place of Presentation
  広島大学
- Year and Date
  2013-03-29
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] 宇宙分離条件の一般化へ向けて2013
- Author(s)
  原田知広、Bernard J. Carr
- Organizer
  日本物理学会第６８回年次大会
- Place of Presentation
  広島大学
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] UPPER LIMITS OF PARTICLE EMISSION FROM HIGH-ENERGY COLLISION ANDREACTION NEAR A MAXIMALLY ROTATING KERR BLACK HOLE2013
- Author(s)
  Tomohiro Harada
- Organizer
  the 20th GR and 10th Amalidi Coference on Gravitatonal Waves
- Place of Presentation
  University of Warsaw
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] Analytic formula for the threshold of primordial black hole formation2013
- Author(s)
  Tomohiro Harada
- Organizer
  The workshop on wormholes and primordial black holes: theories and observations
- Place of Presentation
  Nagoya University
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] Analytic formula for the threshold of primordial black hole formation2013
- Author(s)
  Tomohiro Harada
- Organizer
  The 23rd Workshop on General Relativity and Gravitation in Japan
- Place of Presentation
  Hirosaki University
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] High-velocity collision of particles around a Kerr black hole2013
- Author(s)
  Tomohiro Harada
- Organizer
  the Proceedings of the 21st Workshop on General Relativity and Gravitation in Japan
- URL
  http://www-tap.scphys.kyoto-u.ac.jp/jgrg/proc/JGRG23
- Place of Presentation
  Hirosaki University, Hirosaki, Japan
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] High-velocity collision of two general geodesic particle around a Kerr black hole2012
- Author(s)
  Tomohiro Harada and Masashi Kimura
- Organizer
  13th Marcel Grossmann Meeting on recent developments in theoretical and experimental general relativity, gravitation, relativistic field theories
- Place of Presentation
  Stockholm University, Sweeden
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] High-velocity collision of two general geodesic particles around a Kerr black hole2012
- Author(s)
  Tomohiro Harada and Masashi Kimura
- Organizer
  the 13th Marcel Grossmann Meeting on recent developments in theoretical and experimental general relativity, gravitation, relativistic field theories
- Place of Presentation
  Stockholm University, Stockholm, Sweden
- Year and Date
  2012-07-17
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Upper limits of particle emission from high-energy collision reaction near a maximally rotating Kerr black hole2012
- Author(s)
  Tomohiro Harada
- Organizer
  RESCU SYMPOSIUM ON GENERAL RELATIVITY AND GRAVITATION "JGRG22"
- Place of Presentation
  University of Tokyo
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] High-velocity collision of particles around a Kerr black hole and its implication2012
- Author(s)
  Tomohiro Harada
- Organizer
  Nishinomiya Yukawa Symposium: New Waves in Gravity and Cosmology
- Place of Presentation
  Kyoto University
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] 高回転ブラックホール付近の高エネルギー粒子衝突による粒子放射に対する上限について2012
- Author(s)
  原田知広、宗像裕也、宮本雲平
- Organizer
  日本物理学会2012年秋季大会
- Place of Presentation
  京都産業大学
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] High-velocity collision of particles around a rapidly rotating black hole2012
- Author(s)
  Tomohiro Harada
- Organizer
  The21st Workshop on General Relativity and Gravitation in Japan
- Place of Presentation
  Tohoku University, Sendai, Japan
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Upper limits of particle emission from high-energy collisionand reaction near a maximally rotating Kerr black hole2012
- Author(s)
  Tomohiro Harada
- Organizer
  the RESCEU SYMPOSIUM ON GENERAL RELATIVITY AND GRAVITATION
- Place of Presentation
  University of Tokyo, Tokyo, Japan.
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] High-velocity collision of ISCO particle around a Kerr black hole2012
- Author(s)
  Tomohiro Harada and Masashi Kimura
- Organizer
  13th Marcel Grossmann Meeting on recent developments in theoretical and experimental general relativity, gravitation, relativistic field theories
- Place of Presentation
  Stockholm University, Sweeden
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] High-velocity collision of an ISCO particle around a Kerr black hole2012
- Author(s)
  Tomohiro Harada and Masashi Kimura
- Organizer
  the 13th Marcel Grossmann Meeting on recent developments in theoretical and experimental general relativity, gravitation, relativistic field theories
- Place of Presentation
  Stockholm University, Stockholm, Sweden.
- Year and Date
  2012-07-17
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] High-velocity collision of particles around a Kerr black hole and implication2012
- Author(s)
  Tomohiro Harada
- Organizer
  Nishinomiya Yukawa Symposium: New Waves in Gravity and Cosmology
- Place of Presentation
  Kyoto University
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] High-velocity collision of particles around a Kerr black hole and its implication2012
- Author(s)
  Tomohiro Harada
- Organizer
  Gravity and Cosmology 2012, 18 Nov-21Dec
- Place of Presentation
  Kyoto University, Kyoto, Japan.
- Year and Date
  2012-11-18
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] 高速回転ブラックホール付近の高エネルギー粒子衝突による粒子放射に対する上限について2012
- Author(s)
  原田知広(立教大理・准教授)、宗像裕也(立教大理D3)、宮本雲平(立教大・先端科学計測センターPD
- Organizer
  日本物理学会2012年秋季大会
- Place of Presentation
  京都産業大学
- Year and Date
  2012-09-12
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] 重力波放射反作用を考慮したときの天体加速器としての Kerr ブラックホール2012
- Author(s)
  原田知広立教大理・准教授、木村匡志(京大基研・学振特別研究員PD)
- Organizer
  日本物理学会第67回年次大会
- Place of Presentation
  関西学院大学
- Year and Date
  2012-03-27
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] High-velocity collision of particles around a rapidly rotating black hole2012
- Author(s)
  Tomohiro Harada
- Organizer
  The 7th International Conference onGravitation and Cosmology
- Place of Presentation
  Holida Inn Goa, Goa, India.
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] High-velocity collision of two general geodesic particles around a Kerr black hole2012
- Author(s)
  Tomohiro Harada and Masashi Kimura
- Organizer
  13th Marcel Grossmann Meeting on recent developments in theoretical and experimental general relativity, gravitation, relativistic field theories
- Place of Presentation
  Stockholm University, Sweden
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Upper limits of particle emission from high-energy collisionand reaction near a maximally rotating Kerr black hole2012
- Author(s)
  Tomohiro Harada
- Organizer
  RESCEU SYMPOSIUM ON GENERAL RELATIVITY AND GRAVITATION ``JGRG22''
- Place of Presentation
  University of Tokyo
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] High-velocity collision of particles around a Kerr black hole and its implication2012
- Author(s)
  Tomohiro Harada
- Organizer
  Gravity and Cosmology 2012
- Place of Presentation
  Kyoto University
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] High-velocity collision of particles around a Kerr black hole and its implication2012
- Author(s)
  Tomohiro Harada
- Organizer
  Nishinomiya Yukawa Symposium: New Waves in Gravity and Cosmology, 4-6Dec
- Place of Presentation
  Kyoto University, Kyoto, Japan. (poster and short talk)
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] 重力波放射反作用を考慮したときの天体加速器としてのKerrブラックホール2012
- Author(s)
  原田知広、木村匡志
- Organizer
  日本物理学会第67回年次大会
- Place of Presentation
  関西学院大学
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] 高速回転ブラックホール付近の高エネルギー粒子衝突による粒子放射に対する上限について2012
- Author(s)
  原田知広、宗像裕也、宮本雲平
- Organizer
  日本物理学会2012年秋季大会
- Place of Presentation
  京都産業大学
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] High-velocity collision of particles around a Kerr black hole and implication2012
- Author(s)
  Tomohiro Harada
- Organizer
  Gravity and Cosmology 2012
- Place of Presentation
  Kyoto University
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] 重力波放射反作用を考慮したときの天体加速器としてのKerrブラックホール2012
- Author(s)
  原田知広、木村匡志
- Organizer
  日本物理学会第67回年次大会
- Place of Presentation
  関西学院大学
- Year and Date
  2012-03-27
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] High-velocity collision of an ISCO particle around a Kerr black hole2012
- Author(s)
  Tomohiro Harada and Masashi Kimura
- Organizer
  13th Marcel Grossmann Meeting on recent developments in theoretical and experimental general relativity, gravitation, relativistic field theories
- Place of Presentation
  Stockholm University, Sweden
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] High-velocity collision of particles around a rapidly rotating black hole2011
- Author(s)
  Tomohiro Harada
- Organizer
  The 7th International Conference on Gravitation and Cosmology
- Place of Presentation
  Holiday Inn Goa, Goa, India.
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] High-velocity collision of particles around a rapidly rotating black hole2011
- Author(s)
  Tomohiro Harada
- Organizer
  The 7th International Conference on Gravitation and Cosmology
- Place of Presentation
  Holiday Inn Goa, Goa, India
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] 高速回転ブラックホール付近での天体の高速衝突2011
- Author(s)
  原田知広、木村匡志
- Organizer
  日本天文学会春季年会
- Place of Presentation
  日本天文学会2011年春季年会予稿集(東北関東大台災のための年会中止に伴う特例)
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] High-velocity collision of particles around a rapidly rotating black hole2011
- Author(s)
  Tomohiro Harada
- Organizer
  The 21st Workshop on General Relativity and Gravitation in Japan
- Place of Presentation
  Tohoku University, Sendai, Japan
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] High-velocity collision of particles around a Kerr black hole2011
- Author(s)
  Tomohiro Harada
- Organizer
  the Proceedings of the 21st Workshop on General Relativity and Gravitation in Japan
- URL
  http://www-tap.scphys.kyoto-u.ac.jp/jgrg/proc/JGRG21.pdf
- Place of Presentation
  Tohoku University, Sendai, Japan
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] 高速回転ブラックホール付近での天体の高速衝突2011
- Author(s)
  原田知広(立教大理・准教授)、木村匡志(大阪市大数学研究所・専任研究員)
- Organizer
  日本天文学会2011年春季年会予稿集(東北関東大震災のための年会中止に伴う特例措置)
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Kerrブラックホール周りでの一般の測地的二粒子の衝突2011
- Author(s)
  原田知広(立教大理・准教授)、木村匡志(京大基研・学振特別研究員 PD)
- Organizer
  日本物理学会2011年秋季大会
- Place of Presentation
  弘前大学
- Year and Date
  2011-09-16
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Kerrブラックホール周りでの一般の測地的二粒子の衝突2011
- Author(s)
  原田知広、木村匡志
- Organizer
  日本物理学会2011年秋季大会
- Place of Presentation
  弘前大学
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] High-velocity collision of particles around a rapidly rotating black hole2011
- Author(s)
  Tomohiro Harada
- Organizer
  The 21st Workshop on General Relativity and Gravitation in Japan
- Place of Presentation
  Tohoku University, Sendai, Japan
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] Collision of geodesic particles around a Kerr black hole2011
- Author(s)
  Tomohiro Harada
- Organizer
  IPMU Workshop on Black Holes
- Place of Presentation
  IPMU, Kashiwa, Japan
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] High-velocity collision of particles around a rapidly rotating black hole, Vishwa Mimansa : An Interpretative Exposition of the Universe2011
- Author(s)
  Tomohiro Harada
- Organizer
  the Proceedings of the 7th International Conference on Gravitation and Cosmology
- Place of Presentation
  Goa, India
- Data Source
  KAKENHI-PROJECT-23654082
[Presentation] Uniqueness of static spherically symmetric vacuum solutions in the IR limit of nonrelativistic quantum gravity2010
- Author(s)
  Tomohiro Harada
- Organizer
  Spanish Relativity Meeting 2010
- Place of Presentation
  Granada, Spain
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Black hole candidates and the Kerr bound2010
- Author(s)
  Tomohiro Harada
- Organizer
  Spanish Relativity Meeting 2010
- Place of Presentation
  Palacio de Exposiciones yCongresos de Granada, Granada, Spain.
- Year and Date
  2010-09-09
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Uniqueness of static spherically symmetric vacuum solutions in the IR limit of nonrelativistic quantum gravity2010
- Author(s)
  Tomohiro Harada
- Organizer
  Spanish Relativity Meeting 2010
- Place of Presentation
  Palacio de Exposiciones yCongresos de Granada, Granada, Spain
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] ブラックホール候補天体とKerr限界2010
- Author(s)
  高橋労太(理研・基礎科学特別研究員)、原田知広(立教大理・准教授)
- Organizer
  日本物理学会秋季大会
- Place of Presentation
  九州工業大学
- Year and Date
  2010-09-14
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] 非相対論的量子重力の赤外極限における静的球対称解2010
- Author(s)
  原田知広(立教大理・准教授)、宮本雲平(立教大理・ポストドクトラルフェロー)、塚本直樹(立教大理・M2)
- Organizer
  日本物理学会第65回年次大会
- Place of Presentation
  岡山大学
- Year and Date
  2010-03-23
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Black hole candidates and the Kerr bound2010
- Author(s)
  Tomohiro Harada
- Organizer
  The20th Workshop on General Relativity and Gravitation in Japan
- Place of Presentation
  YITP, Kyoto, Japan
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Black hole candidates and the Kerr bound2010
- Author(s)
  Tomohiro Harada
- Organizer
  Spanish Relativity Meeting 2010
- Place of Presentation
  Granada, Spain
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] 非相対論的量子重力の赤外極限における静的球対称解2010
- Author(s)
  原田知広、宮本雲平、塚本直樹
- Organizer
  日本物理学会
- Place of Presentation
  岡山大学
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Einstein-Rosenwaves and the self-similarity hypothesis in cylindrical symmetry2009
- Author(s)
  Tomohiro Harada
- Organizer
  The 19th Workshop on General Relativity and Gravitation in Japan
- Place of Presentation
  Rikkyo University, Tokyo, Japan
- Year and Date
  2009-11-30
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Einstein-Rosen waves and the self-similarity hypothesis in cylindrical symmetry2009
- Author(s)
  Tomohiro Harada, Ken-ichi Nakao and Brien C. Nolan
- Organizer
  The 12th Marcel Grossmann Meeting on recent developments in theoretical and experimental general relativity, gravitation, relativistic field theories
- Place of Presentation
  Unesco Headquarters, Paris, France
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Einstein-Rosen波と円筒対称時空における自己相似仮説2009
- Author(s)
  原田知広、中尾憲一、B.C.Nolan
- Organizer
  日本物理学会第64回年次大会
- Place of Presentation
  立教大学
- Year and Date
  2009-03-29
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Einstein-Rosen波と円筒対称時空における自己相似仮説II2009
- Author(s)
  原田知広(立教大理・准教授)、中尾憲一(大阪市立大・教授)、B.C.Nolan(ダブリン市立大・上級講師)
- Organizer
  日本物理学会秋季大会
- Place of Presentation
  甲南大学
- Year and Date
  2009-09-10
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Einstein-Rosen waves and the self-similarity hypothesis in cylindrical symmetry2009
- Author(s)
  Tomohiro Harada
- Organizer
  The 19th Workshop on General Relativity and GraVitation in Japan
- Place of Presentation
  Rikkyo University
- Data Source
  KAKENHI-PROJECT-21740190
[Presentation] Self-similar black holes in an accelerated universe2008
- Author(s)
  Tomohiro Harada
- Organizer
  Spanish Relativity Meeting 2008
- Place of Presentation
  スペイン王国サラマンカ市
- Year and Date
  2008-09-15
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Self-similar black holes in an accelerated universe2008
- Author(s)
  Tomohiro Harada
- Organizer
  Spanish Relativity Meeting 2008, 15-19 Sep 2008
- Place of Presentation
  Hospederia Fonseca Conference Centre, Salamanca, Spain
- Year and Date
  2008-09-15
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Gravitational collapse of a dust ball from a perspective of loop quantum gravity : an application2008
- Author(s)
  Tomohiro Harada
- Organizer
  The 18th Workshop on General Relativity and Gravitation, 17-21 Nov,2008
- Place of Presentation
  Hiroshima University, Hiroshima, Japan
- Year and Date
  2008-11-20
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] 重力崩壊の臨界現象の厳密な臨界解2008
- Author(s)
  原田知広、A.マハジャン
- Organizer
  日本物理学会年次大会
- Place of Presentation
  近畿大学
- Year and Date
  2008-03-24
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] ループ量子重力の観点からの球対称ダスト重力崩壊 : 数値計算2008
- Author(s)
  原田知広
- Organizer
  日本物理学会秋季大会
- Place of Presentation
  山形大学
- Year and Date
  2008-09-20
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] 重力崩壊の臨界現象の厳密な臨界解2008
- Author(s)
  原田知広、A.Mahajan
- Organizer
  日本物理学会第63回年次大会
- Place of Presentation
  近畿大学
- Year and Date
  2008-03-24
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] ループ量子重力の観点からの球対称ダスト重力崩壊:数値計算2008
- Author(s)
  原田知広、M.Bojowald、R.Tibrewala
- Organizer
  日本物理学会秋季大会
- Place of Presentation
  山形大学
- Year and Date
  2008-09-23
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Asymptotically Friedmann Self-Similar Solutions with Dark Energy2007
- Author(s)
  Tomohiro Harada, Hideki Maeda and B. J. Carr
- Organizer
  The 18th International Conference on General Relativity and Gravitation, 8-14 July 2007
- Place of Presentation
  Sydney Conference Centre, Sydney, Australia
- Year and Date
  2007-07-12
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] 暗黒エネルギー宇宙における自己相似的ブラックホール2007
- Author(s)
  原田知広、前田秀基、B.J.カー
- Organizer
  日本物理学会秋季大会
- Place of Presentation
  北海道大学
- Year and Date
  2007-09-22
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Self-similar cosmological solutions with dark energy I : formulation and asymptotic analysis2007
- Author(s)
  Tomohiro Harada, Hideki Maeda and B.J. Carr
- Organizer
  The 8th International Conference on Gravitation and Astrophysics,29 Aug-1 Sep 2007
- Place of Presentation
  Nara Women's University, Nara, Japan(poster and short talk,査読有)
- Year and Date
  2007-08-29
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] 暗黒エネルギー宇宙における自己相似的ブラックホール解の存在可能性について2007
- Author(s)
  前田秀基、原田知広、B.J.カー
- Organizer
  日本物理学会第62回年次大会
- Place of Presentation
  首都大学東京
- Year and Date
  2007-03-26
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Self-similar cosmological solutions with dark energy I:formulation and asymptotic analysis2007
- Author(s)
  Tomohiro Harada, Hideki Maeda and B. J. Carr
- Organizer
  The 8th International Conference on Gravitation and Astrophysics
- Place of Presentation
  Nara Women's University, Nara, Japan
- Year and Date
  2007-08-29
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Black Hole Evaporation in a Friedmann Universe2007
- Author(s)
  Hiromi Saida, Tomohiro Harada and Hideki Maeda
- Organizer
  The 8th International Conference on Gravitation and Astrophysics, 29 Aug-1 Sep 2007
- Place of Presentation
  Nara Women's University, Nara, Japan(poster and short talk,査読有)
- Year and Date
  2007-08-29
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Asymptotically Friedmann Self-Similar Solutions with Dark Energy2007
- Author(s)
  Tomohiro Harada, Hideki Maeda and B. J. Carr
- Organizer
  The 18th International Conference on General Relativity and Gravitation
- Place of Presentation
  Sydney Conference Centre, Sydney, Australia
- Year and Date
  2007-07-12
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Self-similar cosmological solutions with dark energy2007
- Author(s)
  Tomohiro Harada
- Organizer
  The 17th Workshop on General Relativity and Gravitation, 3-7 Dec, 2007
- Place of Presentation
  Nagoya University, Nagoya, Japan. (poster and short talk)
- Year and Date
  2007-12-03
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Black Hole Evaporation in a Friedmann Universe2007
- Author(s)
  Hiromi Saida, Tomohiro Harada and Hideki Maeda
- Organizer
  The 8th International Conference on Gravi tation and Astrophysics
- Place of Presentation
  Nara Women's University, Nara, Japan
- Year and Date
  2007-08-29
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] ブラックホールに最小質量はあるか?2006
- Author(s)
  原田知広
- Organizer
  日本物理学会秋季大会
- Place of Presentation
  奈良女子大学
- Year and Date
  2006-09-23
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Non-existence of self-similar black hole in a universe with a scalar field or quintessence2006
- Author(s)
  Tomohiro Harada
- Organizer
  The 16th Workshop on General Relativity and Gravitation, 27 Nov-1 Dec, 2006
- Place of Presentation
  Niigata Prefectural Civic Center, Niigata, Japan
- Year and Date
  2006-11-30
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Singularities and Self-Similarity in Gravitational Collapse2006
- Author(s)
  Tomohiro Harada
- Organizer
  an invited plenary talk, Hayashibara Forum on Singularities, 20-23 Nov 2006
- Place of Presentation
  Insitut des Hautes Etudes Scientifiques, Bur-sur-Yvette, France
- Year and Date
  2006-11-21
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Black Holes in Scalar Field/Quintessence Cosmology2006
- Author(s)
  Tomohiro Harada
- Organizer
  The 11th Marcel Grossmann Meeting on recent developments in theoretical and experimental general relativity, gravitation, relativistic field theories, 23-29 Jul 2006
- Place of Presentation
  Berlin Freie Universitaet, Berlin, Germany
- Year and Date
  2006-07-24
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Naked singularities and self-similarity in gravitational collapse2006
- Author(s)
  Tomohiro Harada
- Organizer
  an invited talk, Workshop "From Geometry To Numerics", 20-24 Nov 2006
- Place of Presentation
  Institut Henri Poincare, Paris, France
- Year and Date
  2006-11-24
- Data Source
  KAKENHI-PROJECT-18740144
[Presentation] Black holes as particle accelerators: a brief review
- Author(s)
  Tomohiro Harada
- Organizer
  The 24th Workshop on General Relativity and Gravitation in Japan
- Place of Presentation
  東京大学Kavli IPMU（千葉県柏市）
- Year and Date
  2014-11-10 – 2014-11-14
- Data Source
  KAKENHI-PROJECT-26400282
[Presentation] Threshold of primordial black hole formation
- Author(s)
  Tomohiro Harada
- Organizer
  The 15th Canadian Conference on General Relativity and Relativistic Astrophysics
- Place of Presentation
  ウィニペグ（カナダ）
- Year and Date
  2014-05-21 – 2014-05-23
- Data Source
  KAKENHI-PROJECT-26400282

1. Yoo Chulmoon (60467404)

# of Collaborated Projects: 3 results

# of Collaborated Products: 2 results
2. 佐々木節 (70162386)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
3. ABE Fumio (80184224)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. 中村卓史 (80155837)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. 田中貴浩 (40281117)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. 柴田大 (80252576)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. 井岡邦仁 (80402759)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 大原謙一 (00183765)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 千葉剛 (40324602)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. 大川博督 (40633285)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. 黒柳幸子 (60456639)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. KUSENKO ALEXANDER (70817791)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. 郡和範 (50565819)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
14. 西條統之

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. TAKAHASHI Tomo

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
16. MIYAMOTO Umpei

# of Collaborated Projects: 0 results

# of Collaborated Products: 5 results
17. Kinoshita Shunichiro

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
18. 古賀泰敬

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
19. 中尾憲一

# of Collaborated Projects: 0 results

# of Collaborated Products: 4 results
20. 伊形尚久

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
21. 田越秀行

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
22. 木村匡志

# of Collaborated Projects: 0 results

# of Collaborated Products: 3 results
23. 石井貴昭

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
24. 成子篤

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Harada Tomohiro 原田 知広

HARADA Tomohiro 原田 知広

Research Projects

Research Products

Co-Researchers

Numerical relativity studies on primordial black hole formation in different mechanismsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Investigation of primordial black holes and macroscopic dark matter

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Theoretical prediction for the spin of primordial black holesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Theoretical study of the mass and angular momentum distribution of primordial black holes

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Formation of Primordial Black Holes in the Matter-Dominated Era of the UniversePrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Observational tests of wormholes

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Gravitational collapse and spacetime singularities in quantum gravityPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Application of spectral methods to high-accuracy numerical relativityPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

重力波源と波形の研究

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Book] 宇宙まるごとQ & A: はやぶさ２からブラックホールまで2021

Author(s)

Total Pages

Publisher

Data Source

[Journal Article] Relativistic orbits of S2 star in the presence of scalar field2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Revisiting compaction functions for primordial black hole formation2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Spins of primordial black holes formed with a soft equation of state2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Radiative gravastar with thermal spectrum: Sudden vacuum condensation without gravitational collapse2023

Harada Tomohiro 原田知広

HARADA Tomohiro 原田知広