Uryu Koji 瓜生康史

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URYU Kohji 瓜生康史

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Researcher Number	40457693
Other IDs	https://orcid.org/0000-0002-7473-3587
Affiliation (Current)	2026: 琉球大学, 理学部, 教授
Affiliation (based on the past Project Information) *help	2011 – 2024: 琉球大学, 理学部, 教授 2008 – 2010: University of the Ryukyus, 理学部, 准教授
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 Particle/Nuclear/Cosmic ray/Astro physics / Science and Engineering
Keywords	Principal Investigator 連星中性子星 / 数値相対論 / 相対論的宇宙物理学 / 重力波 / 相対論的回転星 / 相対論・重力（理論） / 中性子星磁場 / クォーク星 / ブラックホール / 連星ブラックホール … More / 連星中性子星・ブラックホール / 高密度天体 / 国際情報交換　ドイツ：米国 / 国際研究者交流　ドイツ：米国 / 国際情報交換　米国:ドイツ / 国際研究者交流　米国：ドイツ / 国際情報交換　米国：ドイツ / 国際研究者交流　米国:ドイツ / 国際研究者交流　フランス / 国際情報交換　アメリカ合衆国：ドイツ / 国際研究者交流　フランス：ギリシャ / ブラックホール－中性子星連星 / 国際情報交換　フランス：ギリシャ：ドイツ：英国 / 国際研究者交流　アメリカ合衆国 / 高密度物質の状態方程式 / ブラックホールー中性子星連星 / ブラックホール-中性子星連星 / 高速回転星 / 相対論・重力(理論) … More Except Principal Investigator ブラックホール / Bモード / ヒッグス粒子 / 標準模型 / コンフォーマルな重力 / ホーキング輻射 / 標準理論を超える理論 / 暗黒物質 / 量子重力 / 超光速ニュートリノ / 超弦理論 / 有質量の重力子 / 重力のヒッグス機構 / 量子重力理論 / 質量を持つ重力子 / 重力理論 / 素粒子(理論) / ニュートリノ振動 / 元素合成 / 重力波 / 中性子星 / 状態方程式 / ニュートリノ / 超新星爆発 Less

Initial data for numerical relativity simulations associated with standing wavesPrincipal Investigator
- Principal Investigator
  
  瓜生康史
- Project Period (FY)
  2022 – 2025
- 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
  University of the Ryukyus
Construction of various initial data for numerical relativity simulationsPrincipal Investigator
- Principal Investigator
  
  Uryu Koji
- Project Period (FY)
  2018 – 2022
- 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
  University of the Ryukyus
Developmental research on the numerical method for initial data in numerical relativityPrincipal Investigator
- Principal Investigator
  
  URYU Koji
- Project Period (FY)
  2015 – 2017
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  University of the Ryukyus
Physics of dark matter and 130GeV gamma-ray signal
- Principal Investigator
  
  Oda Ichiro
- Project Period (FY)
  2013 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  University of the Ryukyus
Formulations and numerical methods for strongly magnetized compact objects in equilibrium or quasi-equilibrium, and their applications to gravitational wave astronomyPrincipal Investigator
- Principal Investigator
  
  URYU Koji
- Project Period (FY)
  2011 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  University of the Ryukyus
On quantum gravity of massive gravity
- Principal Investigator
  
  ODA Ichiro
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  University of the Ryukyus
Study of Explosive Astrophysical Phenomena and Nucleosynthesis based on Quark Dynamics and Nuclear Structure
- Principal Investigator
  
  SUZUKI Hideyuki
- Project Period (FY)
  2008 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
- Review Section
  
  Science and Engineering
- Research Institution
  Tokyo University of Science
Quasi-equilibriums of magnetized binary neutron stars and initial data for numerical relativity simulationsPrincipal Investigator
- Principal Investigator
  
  URYU Koji
- Project Period (FY)
  2008 – 2010
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  University of the Ryukyus

[Journal Article] General-relativistic resistive-magnetohydrodynamics simulations of self-consistent magnetized rotating neutron stars2025
- Author(s)
  Patrick Chi-Kit Cheong, Antonios Tsokaros, Milton Ruiz, Fabrizio Venturi, Juno Chun Lung Chan, Anson Ka Long Yip, Koji Uryu
- Journal Title
  
  Physical Review D
  
  Volume: 111 Issue: 6
- DOI
  10.1103/physrevd.111.063030
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03636
[Journal Article] The Parallel Compact Object CALculator: An Efficient General Relativistic Initial Data Solver for Compact Objects2024
- Author(s)
  Lambros Boukas, Antonios Tsokaros, Koji Uryu
- Journal Title
  
  Universe
  
  Volume: 10 Issue: 5 Pages: 229-229
- DOI
  10.3390/universe10050229
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03636
[Journal Article] General Relativistic Stability and Gravitational Wave Content of Rotating Triaxial Neutron Stars2024
- Author(s)
  Yufeng Luo, Antonios Tsokaros, Roland Haas, Koji Uryu
- Journal Title
  
  Symmetry
  
  Volume: 16 Issue: 3 Pages: 343-343
- DOI
  10.3390/sym16030343
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03636
[Journal Article] Equilibriums of extremely magnetized compact stars with force-free magnetotunnels2023
- Author(s)
  Koji Uryu, Shijun Yoshida, Eric Gourgoulhon, Charalampos Markakis, Kotaro Fujisawa, Antonios Tsokaros, Keisuke Taniguchi, Mina Zamani
- Journal Title
  
  Physical Review D
  
  Volume: 107 Issue: 10
- DOI
  10.1103/physrevd.107.103016
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03636, KAKENHI-PROJECT-21K03556
[Journal Article] Magnetohydrodynamic Simulations of Self-Consistent Rotating Neutron Stars with Mixed Poloidal and Toroidal Magnetic Fields2022
- Author(s)
  Tsokaros Antonios、Ruiz Milton、Shapiro Stuart L.、Uryu Koji
- Journal Title
  
  Physical Review Letters
  
  Volume: 128 Issue: 6
- DOI
  10.1103/physrevlett.128.061101
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03624
[Journal Article] Methods for relativistic self-gravitating fluids: from binary neutron stars to black hole-disks and magnetized rotating neutron stars2022
- Author(s)
  Tsokaros Antonios, Uryu Koji
- Journal Title
  
  General Relativity and Gravitation
  
  Volume: 54 Issue: 6
- DOI
  10.1007/s10714-022-02928-1
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03636, KAKENHI-PROJECT-18K03624
[Journal Article] Evolution of bare quark stars in full general relativity: Single star case2021
- Author(s)
  Zhou Enping、Kiuchi Kenta、Shibata Masaru、Tsokaros Antonios、Ury? K?ji
- Journal Title
  
  Physical Review D
  
  Volume: 103 Issue: 12 Pages: 123011-123011
- DOI
  10.1103/physrevd.103.123011
- NAID
  120007166779
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H00158, KAKENHI-PROJECT-18H01213, KAKENHI-PROJECT-18K03624
[Journal Article] Great Impostors: Extremely Compact, Merging Binary Neutron Stars in the Mass Gap Posing as Binary Black Holes2020
- Author(s)
  Tsokaros Antonios、Ruiz Milton、Shapiro Stuart L.、Sun Lunan、Uryu Koji
- Journal Title
  
  Physical Review Letters
  
  Volume: 124 Issue: 7
- DOI
  10.1103/physrevlett.124.071101
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03624
[Journal Article] Complete initial value spacetimes containing black holes in general relativity: Application to black hole-disk systems2019
- Author(s)
  Antonios Tsokaros, Koji Uryu, Stuart L. Shapiro
- Journal Title
  
  Physical Review D
  
  Volume: 99 Issue: 4
- DOI
  10.1103/physrevd.99.041501
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03624
[Journal Article] Dynamically Stable Ergostars Exist: General Relativistic Models and Simulations2019
- Author(s)
  Tsokaros Antonios、Ruiz Milton、Sun Lunan、Shapiro Stuart L.、Uryu Koji
- Journal Title
  
  Physical Review Letters
  
  Volume: 123 Issue: 23
- DOI
  10.1103/physrevlett.123.231103
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03624
[Journal Article] New code for equilibriums and quasiequilibrium initial data of compact objects. IV. Rotating relativistic stars with mixed poloidal and toroidal magnetic fields2019
- Author(s)
  Koji Uryu, Shijun Yoshida, Eric Gourgoulhon, Charalampos Markakis, Kotaro Fujisawa, Antonios Tsokaros, Keisuke Taniguchi, and Yoshiharu Eriguch
- Journal Title
  
  Physical Review D
  
  Volume: 100 Issue: 12 Pages: 123019-123019
- DOI
  10.1103/physrevd.100.123019
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03606, KAKENHI-PROJECT-18K03624, KAKENHI-PROJECT-17K05447
[Journal Article] Effect of spin on the inspiral of binary neutron stars2019
- Author(s)
  Tsokaros Antonios、Ruiz Milton、Paschalidis Vasileios、Shapiro Stuart L.、Uryu Koji
- Journal Title
  
  Physical Review D
  
  Volume: 100 Issue: 2
- DOI
  10.1103/physrevd.100.024061
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03624
[Journal Article] Differentially rotating strange star in general relativity2019
- Author(s)
  Zhou Enping、Tsokaros Antonios、Uryu Koji、Xu Renxin、Shibata Masaru
- Journal Title
  
  Physical Review D
  
  Volume: 100 Issue: 4
- DOI
  10.1103/physrevd.100.043015
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03624
[Journal Article] Uniformly rotating, axisymmetric, and triaxial quark stars in general relativity2018
- Author(s)
  Zhou Enping, Tsokaros Antonios, Rezzolla Luciano, Xu Renxin, Uryu Koji
- Journal Title
  
  Physical Review D
  
  Volume: 97 Issue: 2
- DOI
  10.1103/physrevd.97.023013
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K05085
[Journal Article] Rotating Quark Stars in General Relativity2018
- Author(s)
  Zhou Enping, Tsokaros Antonios, Rezzolla Luciano, Xu Renxin, Uryu Koji
- Journal Title
  
  Universe
  
  Volume: 4 Issue: 3 Pages: 48-48
- DOI
  10.3390/universe4030048
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K05085
[Journal Article] Constant circulation sequences of binary neutron stars and their spin characterization2018
- Author(s)
  Antonios Tsokaros, Koji Uryu, Milton Ruiz, Stuart L. Shapiro
- Journal Title
  
  Physical Review D
  
  Volume: 98 Issue: 12
- DOI
  10.1103/physrevd.98.124019
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03624
[Journal Article] Modeling differential rotations of compact stars in equilibriums2017
- Author(s)
  Uryu Koji、Tsokaros Antonios、Baiotti Luca、Galeazzi Filippo、Taniguchi Keisuke、Yoshida Shin’ichirou
- Journal Title
  
  Physical Review D
  
  Volume: 96 Issue: 10
- DOI
  10.1103/physrevd.96.103011
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05447, KAKENHI-PROJECT-15K05085
[Journal Article] Gravitational wave content and stability of uniformly, rotating, triaxial neutron stars in general relativity2017
- Author(s)
  Tsokaros Antonios, Ruiz Milton, Paschalidis Vasileios, Shapiro Stuart L., Baiotti Luca, Uryu Koji
- Journal Title
  
  Physical Review D
  
  Volume: 95 Issue: 12
- DOI
  10.1103/physrevd.95.124057
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K05085
[Journal Article] Conservation laws and evolution schemes in geodesic, hydrodynamic, and magnetohydrodynamic flows2017
- Author(s)
  Markakis Charalampos, Uryu Koji, Gourgoulhon Eric, Nicolas Jean-Philippe, Andersson Nils, Pouri Athina, Witzany Vojtech
- Journal Title
  
  Physical Review D
  
  Volume: 96 Issue: 6
- DOI
  10.1103/physrevd.96.064019
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K05085
[Journal Article] Initial-data contribution to the error budget of gravitational waves from neutron-star binaries2016
- Author(s)
  Antonios Tsokaros, Bruno C. Mundim, Filippo Galeazzi, Luciano Rezzolla, Koji Uryu
- Journal Title
  
  Physical Review D
  
  Volume: 94 Issue: 4
- DOI
  10.1103/physrevd.94.044049
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K05085
[Journal Article] New code for equilibriums and quasiequilibrium initial data of compact objects. III. Axisymmetric and triaxial rotating stars2016
- Author(s)
  Koji Uryu, Antonios Tsokaros, Filippo Galeazzi, Hideya Hotta, Misa Sugimura, Keisuke Taniguchi, and Shin’ichirou Yoshida
- Journal Title
  
  Physical Review D
  
  Volume: 93 Issue: 4
- DOI
  10.1103/physrevd.93.044056
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K05085
[Journal Article] Do triaxial supramassive compact stars exist?2016
- Author(s)
  K. Uryu, A. Tsokaros, L. Baiotti, F. Galeazzi, N. Sugiyama, K. Taniguchi, and S.i. Yoshida
- Journal Title
  
  Physical Review D
  
  Volume: 94 Issue: 10 Pages: 101302-101302
- DOI
  10.1103/physrevd.94.101302
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400267, KAKENHI-PROJECT-26400274, KAKENHI-PROJECT-15K05085
[Journal Article] New code for quasiequilibrium initial data of binary neutron stars: Corotating, irrotational, and slowly spinning systems2015
- Author(s)
  Antonios Tsokaros, Koji Uryu, and Luciano Rezzolla
- Journal Title
  
  Physical Review D
  
  Volume: 91 Issue: 10
- DOI
  10.1103/physrevd.91.104030
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K05085
[Journal Article] Equilibrium solutions of relativistic rotating stars with mixed poloidal and toroidal magnetic fields2014
- Author(s)
  Koji Uryu, Eric Gourgoulhon, Charalampos Markakis, Kotaro Fujisawa, Antonios Tsokaros, Yoshiharu Eriguchi
- Journal Title
  
  Physics Review D
  
  Volume: 90 Issue: 10
- DOI
  10.1103/physrevd.90.101501
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-25400262
[Journal Article] 強い磁場を持つ相対論的回転星の数値解2013
- Author(s)
  瓜生康史
- Journal Title
  
  原子核研究
  
  Volume: 57 Pages: 59-62
- Data Source
  KAKENHI-PROJECT-23540314
[Journal Article] Binary black hole ciruclar orbits computed with cocal2013
- Author(s)
  Antonios Tsokaros and Koji Uryu
- Journal Title
  
  Journal of Engineering Mathematics
  
  Volume: 82 Pages: 133-141
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540314
[Journal Article] New code for equilibriums and quasiequilibrium initial data of compact objects2012
- Author(s)
  Koji Uryu, and Antonios Tsokaros
- Journal Title
  
  Physical Review
  
  Volume: D85 Issue: 6
- DOI
  10.1103/physrevd.85.064014
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540314
[Journal Article] Binary black hole ciruclar orbits computed with cocal2012
- Author(s)
  Antonios Tsokaros and Koji Uryu
- Journal Title
  
  Journal of Engineering Mathematics
  
  Volume: N/A Issue: 1 Pages: 1-9
- DOI
  10.1007/s10665-012-9585-6
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540314
[Journal Article] New code for equilibriums and quasiequilibrium initial data of compactobjects. II. Convergence tests and comparisons of binary black hole initial data2012
- Author(s)
  Antonios Tsokaros, Koji Uryu and Philippe Grandclement
- Journal Title
  
  hysical Review D
  
  Volume: 86 Pages: 104001-104001
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540287
[Journal Article] Compact Object CALculator -- COCAL : A new code for equilibriums and quasiequilibrium initial data of compact objects2012
- Author(s)
  Koji Uryu
- Journal Title
  
  Physical Review D
  
  Volume: 83 Pages: 64014-64014
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540287
[Journal Article] New code for equilibriums and quasiequilibrium initial data of compact objects. II. Convergence tests and comparisons of binary black hole initial data2012
- Author(s)
  Koji Uryu, Antonios Tsokaros and Philippe Grandclement
- Journal Title
  
  Physical Review
  
  Volume: D86 Issue: 10
- DOI
  10.1103/physrevd.86.104001
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540314
[Journal Article] Magnetohydrodynamics in stationary and axisymmetric spacetimes: a fully covariant approach2011
- Author(s)
  Eric Gourgoulhon, Charalampos Markakis,Koji Uryu and Yoshiharu Eriguchi
- Journal Title
  
  Physical Review D
  
  Volume: 83 Pages: 104007-104007
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540287
[Journal Article] Magnetohydrodynamics in stationary and axisymmetric spacetimes : a fully covariant approach2011
- Author(s)
  Eric Gourgoulhon, Charalampos Markakis, Koji Uryu, and Yoshiharu Eriguchi
- Journal Title
  
  Physical Review
  
  Volume: D83 Issue: 10
- DOI
  10.1103/physrevd.83.104007
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540314
[Journal Article] Thermodynamics of magnetized binary compact objects2010
- Author(s)
  Koji Uryu, Eric Gourgoulhon, Charalampos Markakis
- Journal Title
  
  Physical Review D 82巻
  
  Pages: 1040541-10405421
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540275
[Journal Article] Thermodynamics of magnetized binary compact objects2010
- Author(s)
  瓜生康史
- Journal Title
  
  Physical Review D
  
  Volume: 82
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540287
[Journal Article] Thermodynamics of magnetized binary compact objects2010
- Author(s)
  Koji Uryu
- Journal Title
  
  Physical Review D
  
  Volume: 82
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540275
[Journal Article] Thermodynamics of magnetized binary compact objects2010
- Author(s)
  Koji Uryu, Eric Gourgoulhon and Charalampos Markakis
- Journal Title
  
  Physical Review D
  
  Volume: 82 Pages: 104054-104054
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540287
[Journal Article] Non-conformally flat initial data for binary compact objects2009
- Author(s)
  K.Uryu, et al
- Journal Title
  
  Physical Review D 80
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20105004
[Journal Article] Non-conformally flat initial data for binary compact objects2009
- Author(s)
  Koji Uryu
- Journal Title
  
  Physical Review D 80
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540275
[Journal Article] Non-conformally flat initial data for binary compact objects2009
- Author(s)
  Koji Uryu, Francois Limousin, John L. Friedman, Eric Gourgoulhon, Masaru Shibata
- Journal Title
  
  Physical Review D 80巻
  
  Pages: 1240041-12400423
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540275
[Journal Article] Measuring the neutron star equation of state with gravitational wave observations2009
- Author(s)
  Jocelyn S. Read, Charalampos Markakis, Masaru Shibata, Koji Uryu, Jolien D. E. Creighton, John L. Friedman
- Journal Title
  
  Physical Review D 79巻
  
  Pages: 1240331-12403312
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540275
[Journal Article] Quasiequilibrium models for triaxially deformed rotating compact stars2008
- Author(s)
  Xing Huang, Charalampos Markakis, Noriyuki Sugiyama, Koji Uryu
- Journal Title
  
  Physical Review D 78巻
  
  Pages: 1240231-12402313
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540275
[Presentation] 超強磁場を伴う相対論的高密度回転星2023
- Author(s)
  瓜生康史
- Organizer
  コンパクト星研究会2023
- Data Source
  KAKENHI-PROJECT-18K03624
[Presentation] 超強磁場を伴う相対論的高密度回転星2022
- Author(s)
  瓜生康史
- Organizer
  コンパクト星研究会2023
- Data Source
  KAKENHI-PROJECT-22K03636
[Presentation] Binary Neutron Star Impostors & Event GW1908142021
- Author(s)
  Antonios Tsokaros, Milton Ruiz, Stuart Shapiro, Lunan Sun, Koji Uryu
- Organizer
  APS April Meeting 2021, Virtual meeting, USA
- Data Source
  KAKENHI-PROJECT-18K03624
[Presentation] Dynamically stable ergostars exist: General relativistic models and simulations.2020
- Author(s)
  Antonios Tsokaros, Milton Ruiz, Lunan Sun, Stuart Shapiro, Koji Uryu
- Organizer
  APS Virtual April Meeting, April 19th 2020, J14 Numerical Modeling of Neutron Stars
- Data Source
  KAKENHI-PROJECT-18K03624
[Presentation] Complete initial value spacetimes containing black holes in general relativity:Application to black hole-disk systems2019
- Author(s)
  Antonios Tsokaros, Koji Uryu, Stuart Shapiro
- Organizer
  APS April Meeting 2019, Denver, Colorado
- Data Source
  KAKENHI-PROJECT-18K03624
[Presentation] Spin in binary neutron star initial data2018
- Author(s)
  Antonios Tsokaros, Koji Uryu, Milton Ruiz, Stuart Shapiro
- Organizer
  APS April Meeting 2018, Columbus, Ohio
- Data Source
  KAKENHI-PROJECT-18K03624
[Presentation] COCAL: initial data code for numerical relativity2018
- Author(s)
  Koji Uryu and Antonio Tsokaros
- Organizer
  The 8th East Asian Numerical Astrophysics Meeting (EANAM 2018), National Cheng-Kung University (NCKU), Tainan, Taiwan
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03624
[Presentation] Single rotating neutron stars as gravitational wave emitters.2018
- Author(s)
  Antonios Tsokaros, Koji Uryu, Stuart Shapiro
- Organizer
  APS April Meeting 2018, April 14-17, Columbus, Ohio
- Data Source
  KAKENHI-PROJECT-15K05085
[Presentation] 差動回転する中性子星の力学平衡解2017
- Author(s)
  岡本章宏，瓜生康史，Antonios Tsokaros，Filippo Galeazzi，谷口敬介，吉田慎一郎
- Organizer
  日本天文学会2017年春季年会
- Place of Presentation
  福岡県福岡市西区九州大学伊都キャンパス
- Year and Date
  2017-03-15
- Data Source
  KAKENHI-PROJECT-15K05085
[Presentation] Binary neutron star initial data and single, rotating neutron stars as gravitational wave emitters.2017
- Author(s)
  Antonios Tsokaros, Koji Uryu, Luca Baiotti, Filippo Galeazzi, Bruno Mundim, Luciano Rezzolla, Noriyuki Sugiyama, Keisuke Taniguchi, and Shin'ichirou Yoshida
- Organizer
  27th Midwest Relativity Meeting, October 12-14, University of Michigan in Ann Arbor, Michigan
- Data Source
  KAKENHI-PROJECT-15K05085
[Presentation] Binary neutron star initial data and single, rotating neutron stars as gravitational wave emitters2017
- Author(s)
  Antonios Tsokaros, Koji Uryu, Luca Baiotti, Filippo Galeazzi, Bruno Mundim, Luciano Rezzolla, Noriyuki Sugiyama, Keisuke Taniguchi, Shin'ichirou Yoshida
- Organizer
  Americal Physical Society April Meeting 2017
- Place of Presentation
  Washington DC, USA
- Year and Date
  2017-01-28
- Data Source
  KAKENHI-PROJECT-15K05085
[Presentation] Quasi-equilibrium solutions for slowly spinning binary neutron stars.2015
- Author(s)
  Antonios Tsokaros, Koji Uryu, Luciano Rezzolla
- Organizer
  BNS2015: Workshop on Binary Neutron Star Mergers
- Place of Presentation
  Thessaloniki, Greece
- Year and Date
  2015-05-27
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K05085
[Presentation] COCAL : A new code for compact objects in (quasi-)equilibriums2013
- Author(s)
  Koji Uryu(発表者) and Antonios Tsokaros
- Organizer
  YKIS 2013 "Gravitational Waves - Revolution in Astronomy & Astrophysics"
- Place of Presentation
  京都大学基礎物理学研究所
- Data Source
  KAKENHI-PROJECT-23540314
[Presentation] COCAL: A new code for compact objects in (quasi-)equilibriums2013
- Author(s)
  Koji Uryu and Antonios Tsokaros
- Organizer
  YKIS 2013 “Gravitational Waves - Revolution in Astronomy & Astrophysics”
- Place of Presentation
  京都大学基礎物理学研究所
- Data Source
  KAKENHI-PROJECT-23540314
[Presentation] Equilibriums and quasi-equilibrium initial data of compact objects2013
- Author(s)
  Koji Uryu(発表者)
- Organizer
  YITP long term workshop "Gravitational waves and numerical relativity"
- Place of Presentation
  京都大学基礎物理学研究所
- Year and Date
  2013-05-23
- Data Source
  KAKENHI-PROJECT-23540314
[Presentation] Trumpet puncture initial data for black holes on COCAL2013
- Author(s)
  Takumu Kawamura(発表者), Antonios Tsokaros, Koji Uryu, and Naomichi Yonaha
- Organizer
  3rd Iberian Gravitational-Wave Meeting 2013
- Place of Presentation
  ADEIT, Universitat de Valencia, Spain
- Data Source
  KAKENHI-PROJECT-23540314
[Presentation] 磁場を持つ相対論的回転星の数値解2012
- Author(s)
  Koji Uryu(発表者), Eric Gourgoulhon, Charalampos Markakis, and Yoshiharu Eriguchi
- Organizer
  ハドロン物質の諸相と状態方程式-中性子星の観測に照らして-研究会
- Place of Presentation
  京都大学基礎物理学研究所
- Data Source
  KAKENHI-PROJECT-23540314
[Presentation] 磁場を持つ相対論的回転星の数値解2012
- Author(s)
  Koji Uryu, Eric Gourgoulhon, Charalampos Markakis and Yoshiharu Eriguchi
- Organizer
  ハドロン物質の諸相と状態方程式-中性子星の観測に照らして-研究会
- Place of Presentation
  YITP, Kyoto University, Kyoto, Japan
- Year and Date
  2012-08-31
- Data Source
  KAKENHI-PROJECT-22540287
[Presentation] 磁場を持つ相対論的回転星の数値解2012
- Author(s)
  Koji Uryu, Eric Gourgoulhon, Charalampos Markakis, and Yoshiharu Eriguchi
- Organizer
  ハドロン物質の諸相と状態方程式－中性子星の観測に照らして－研究会
- Place of Presentation
  京都大学基礎物理学研究所
- Data Source
  KAKENHI-PROJECT-23540314
[Presentation] 磁場を持つ相対論的回転星の数値解2012
- Author(s)
  Koji Uryu
- Organizer
  ハドロン物質の諸相と状態方程式－中性子星の観測に照らして－研究会
- Place of Presentation
  Kyoto University
- Invited
- Data Source
  KAKENHI-PROJECT-22540287
[Presentation] 磁場を持つ高密度天体の定常解計算のための定式化と数値解法2011
- Author(s)
  Koji Uryu, Eric Gourgoulhon, Charalampos Markakis and Yoshiharu Eriguchi
- Organizer
  次世代スーパーコンピューターによる爆発的天体現象の研究
- Place of Presentation
  University of the Ryukyus, Okinawa, Japan
- Data Source
  KAKENHI-PROJECT-22540287
[Presentation] COCAL : A new code for equilibriums and quasi-equilibrium initial data of compact objects2011
- Author(s)
  Antonios Tsokaros(発表者) and Koji Uryu
- Organizer
  Tercentenary of the Laplace-Runge-Lenz vector
- Place of Presentation
  Salt Rock Hotel, Ballito, KZN, South Africa
- Data Source
  KAKENHI-PROJECT-23540314
[Presentation] 磁場を持つ高密度天体の定常解計算のための定式化と数値解法2011
- Author(s)
  瓜生康史
- Organizer
  次世代スーパーコンピューターによる爆発的天体現象の研究
- Place of Presentation
  沖縄県,琉球大学
- Year and Date
  2011-01-31
- Data Source
  KAKENHI-PROJECT-20540275
[Presentation] Magnetized binary black holes and neutron stars in equilibrium2010
- Author(s)
  Koji Uryu, Eric Gourgoulhon, Charalampos Markakis
- Organizer
  20th workshop on General Relativity and Gravitation in Japan (JGRG20)
- Place of Presentation
  YITP, Kyoto University, Kyoto, Japan
- Data Source
  KAKENHI-PROJECT-20540275
[Presentation] Thermodynamics of magnetized binary neutron stars and black holes2010
- Author(s)
  Koji Uryu, Eric Gourgoulhon, Charalampos Markakis
- Organizer
  Eriguchi fest : Physics of Compact Objects
- Place of Presentation
  Rizzan Sea-Park hotel, Onnason, Okinawa, Japan
- Data Source
  KAKENHI-PROJECT-20540275
[Presentation] Magnetized binary black holes and neutron stars in equilibrium2010
- Author(s)
  Koji Uryu
- Organizer
  20th workshop on General Relativity and Gravitation in Japan(JGRG20)
- Place of Presentation
  京都府,京都大学YITP
- Year and Date
  2010-09-24
- Data Source
  KAKENHI-PROJECT-20540275
[Presentation] Magnetized binary black holes and neutron stars in equilibrium2010
- Author(s)
  Koji Uryu, Eric Gourgoulhon and Charalampos Markakis
- Organizer
  20th workshop on General Relativity and Gravitation in Japan
- Place of Presentation
  YITP, Kyoto University, Kyoto, Japan
- Data Source
  KAKENHI-PROJECT-22540287
[Presentation] Magnetized binary compact objects2010
- Author(s)
  Eric Gourgoulhon, Koji Uryu, Charalampos Markakis
- Organizer
  19^<th> International Conference on General Relativity and Gravitation (GR19)
- Place of Presentation
  Mexico City, Mexico
- Data Source
  KAKENHI-PROJECT-20540275
[Presentation] Extracting equation of state parameters from inspiral waveforms2009
- Author(s)
  John L. Friedman, Jocelyn Read, Charalampos Markakis, Masaru Shibata, Koji Uryu, Jolien Creighton, Keisuke Taniguchi
- Organizer
  American Physical Society, 2009 APS April Meeting
- Data Source
  KAKENHI-PROJECT-20540275
[Presentation] Inferring the neutron star equation of state from binary inspiral waveforms2009
- Author(s)
  Charalampos Markakis, Jocelyn S. Read, Masaru Shibata, Koji Uryu, Jolien D. E. Creighton, John L. Friedman
- Organizer
  12th Marcel Grossmann Meeting
- Place of Presentation
  Institut d'Astrophysique de Paris, Paris, France
- Data Source
  KAKENHI-PROJECT-20540275
[Presentation] Equilibriums and quasi-equilibrium initial data of compact objects
- Author(s)
  Koji Uryu
- Organizer
  YITP long term workshop “Gravitational waves and numerical relativity”
- Place of Presentation
  京都大学基礎物理学研究所
- Data Source
  KAKENHI-PROJECT-23540314
[]

1. ODA Ichiro (40265517)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
2. SUZUKI Hideyuki (90211987)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. KAJINO Toshitaka (20169444)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. SUMIYOSHI Kohsuke (30280720)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. UMEDA Hideyuki (60447357)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. SHIBATA Masaru (80252576)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
7. YAMADA Shoichi (80251403)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. OHNISHI Akira (70250412)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. CHIBA Satoshi (60354883)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. IWAMOTO Nobuyuki (70391307)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. YOSHIDA Takashi (80374891)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. OYAMATSU Kazuhiro (10262883)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. TAKANO Masatoshi (00257198)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. MAENO Masahiro (30222285)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. TSOKAROS Antonios

# of Collaborated Projects: 1 results

# of Collaborated Products: 11 results
16. GOURGOULHON Eric

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
17. MARKAKIS Charalampos

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
18. TANIGUCHI Keisuke

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
19. 吉田至順

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Uryu Koji 瓜生 康史

URYU Kohji 瓜生 康史

Research Projects

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Co-Researchers

Initial data for numerical relativity simulations associated with standing wavesPrincipal Investigator

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Construction of various initial data for numerical relativity simulationsPrincipal Investigator

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Developmental research on the numerical method for initial data in numerical relativityPrincipal Investigator

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Physics of dark matter and 130GeV gamma-ray signal

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Formulations and numerical methods for strongly magnetized compact objects in equilibrium or quasi-equilibrium, and their applications to gravitational wave astronomyPrincipal Investigator

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On quantum gravity of massive gravity

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Study of Explosive Astrophysical Phenomena and Nucleosynthesis based on Quark Dynamics and Nuclear Structure

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Quasi-equilibriums of magnetized binary neutron stars and initial data for numerical relativity simulationsPrincipal Investigator

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[Journal Article] General-relativistic resistive-magnetohydrodynamics simulations of self-consistent magnetized rotating neutron stars2025

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[Journal Article] The Parallel Compact Object CALculator: An Efficient General Relativistic Initial Data Solver for Compact Objects2024

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[Journal Article] General Relativistic Stability and Gravitational Wave Content of Rotating Triaxial Neutron Stars2024

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[Journal Article] Equilibriums of extremely magnetized compact stars with force-free magnetotunnels2023

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[Journal Article] Magnetohydrodynamic Simulations of Self-Consistent Rotating Neutron Stars with Mixed Poloidal and Toroidal Magnetic Fields2022

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[Journal Article] Methods for relativistic self-gravitating fluids: from binary neutron stars to black hole-disks and magnetized rotating neutron stars2022

Author(s)

Uryu Koji 瓜生康史

URYU Kohji 瓜生康史