Hirai Yutaka 平居悠

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HIRAI Yutaka 平居悠

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Researcher Number	60824232
Other IDs
Affiliation (Current)	2025: 東北公益文科大学, 公私立大学の部局等, 講師
Affiliation (based on the past Project Information) *help	2022 – 2024: 東北大学, 理学研究科, 特任研究員(日本学術振興会特別研究員CPD) 2021 – 2023: 東北大学, 理学研究科, JSPS特別研究員(CPD) 2018 – 2020: 国立研究開発法人理化学研究所, 計算科学研究センター, 基礎科学特別研究員
Review Section/Research Field	Principal Investigator Basic Section 16010:Astronomy-related / 0204:Astronomy, earth and planetary science, and related fields Except Principal Investigator Basic Section 16010:Astronomy-related / Medium-sized Section 16:Astronomy and related fields
Keywords	Principal Investigator 数値シミュレーション / rプロセス / 元素合成 / 化学進化 / 銀河形成 / 矮小銀河 / 宇宙論的シミュレーション / 天の川銀河ハロー / 化学動力学進化 / 元素組成 … More / 金属欠乏星 / 衛星銀河 / 銀河系 / 位置天文学 / 天の川銀河 / 銀河考古学 / 電子捕獲型超新星爆発 / 連星中性子星合体 / sプロセス / 銀河進化 … More Except Principal Investigator 星団形成 / 銀河形成 / 銀河 / 球状星団 / 流体シミュレーション / N体シミュレーション / 数値シミュレーション / 星団 / シミュレーション / 大質量星 / 高分解能シミュレーション / 宇宙初代星 / 超新星 / 銀河系 / 化学組成 / 金属欠乏星 / 組成異常 / 化学進化 / 連星 / ブラックホール / 近傍銀河 / 矮小銀河 / 分子雲 / ブラックホール連星 Less

Formation of massive star clusters using star-by-star simulations
- Principal Investigator
  
  藤井通子
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 16010:Astronomy-related
- Research Institution
  The University of Tokyo
球状星団の元素組成異常の起源の解明
- Principal Investigator
  
  斎藤貴之
- Project Period (FY)
  2021 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 16010:Astronomy-related
- Research Institution
  Kobe University
First stars nucleosyntheis and early galaxy formation explored by searches for bright metal-poor stars
- Principal Investigator
  
  青木和光
- Project Period (FY)
  2021 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 16:Astronomy and related fields
- Research Institution
  National Astronomical Observatory of Japan
Unraveling the Formation of the Milky Way by cosmological simulations and GaiaPrincipal Investigator
- Principal Investigator
  
  Hirai Yutaka
- Project Period (FY)
  2020 – 2023
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 16010:Astronomy-related
- Research Institution
  Tohoku University
  Institute of Physical and Chemical Research
Binary black holes originating from star clusters in galaxy simulations
- Principal Investigator
  
  Fujii Michiko
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 16010:Astronomy-related
- Research Institution
  The University of Tokyo
Formation and evolution of UFDs in cosmological zoom-in simulationsPrincipal Investigator
- Principal Investigator
  
  HIRAI Yutaka
- Project Period (FY)
  2018 – 2019
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Review Section
  
  0204:Astronomy, earth and planetary science, and related fields
- Research Institution
  Institute of Physical and Chemical Research

All 2024 2023 2022 2021 2020 2019 2018

All Journal Article Presentation Book

[Book] Understanding the Enrichment of Heavy Elements by the Chemodynamical Evolution Models of Dwarf Galaxies2019
- Author(s)
  Hirai Yutaka
- Total Pages
  135
- Publisher
  Springer Nature
- ISBN
  9789811378836
- Data Source
  KAKENHI-PROJECT-19K21057
[Journal Article] EMPRESS. XII. Statistics on the Dynamics and Gas Mass Fraction of Extremely Metal-poor Galaxies2024
- Author(s)
  Xu Yi, Ouchi Masami, Isobe Yuki, Mawatari Ken, et al.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 961 Issue: 1 Pages: 49-49
- DOI
  10.3847/1538-4357/ad06ab
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14516, KAKENHI-PROJECT-21K13909, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-23KJ2148, KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-22K03670, KAKENHI-PROJECT-21K03622, KAKENHI-PROJECT-18K13588, KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-21K13966, KAKENHI-PROJECT-20K22373, KAKENHI-PLANNED-19H05810, KAKENHI-PUBLICLY-23H04009, KAKENHI-PROJECT-20H00171, KAKENHI-PROJECT-21H04496, KAKENHI-PROJECT-23K20866
[Journal Article] EMPRESS. XI. SDSS and JWST Search for Local and z ~4-5 Extremely Metal-poor Galaxies (EMPGs): Clustering and Chemical Properties of Local EMPGs2023
- Author(s)
  Nishigaki Moka、Ouchi Masami、Nakajima Kimihiko、Ono Yoshiaki、Rauch Michael、Isobe Yuki、Harikane Yuichi、Narita Kanako、Zahedy Fakhri、Xu Yi、Yajima Hidenobu、Fukushima Hajime、Hirai Yutaka、Kim Ji Hoon、Inoue Shigeki、Kusakabe Haruka、Lee Chien-Hsiu、Nagao Tohru、Onodera Masato
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 952 Issue: 1 Pages: 11-11
- DOI
  10.3847/1538-4357/accf14
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K13139, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-23KJ2148, KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-22K03670, KAKENHI-PROJECT-21K03622, KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-20K22373, KAKENHI-PROJECT-21H04496
[Journal Article] Insights on the Sun Birth Environment in the Context of Star Cluster Formation in Hub?Filament Systems2023
- Author(s)
  Arzoumanian Doris、Arakawa Sota、Kobayashi Masato I. N.、Iwasaki Kazunari、Fukuda Kohei、Mori Shoji、Hirai Yutaka、Kunitomo Masanobu、Kumar M. S. Nanda、Kokubo Eiichiro
- Journal Title
  
  The Astrophysical Journal Letters
  
  Volume: 947 Issue: 2 Pages: L29-L29
- DOI
  10.3847/2041-8213/acc849
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K14081, KAKENHI-PROJECT-22KJ0155, KAKENHI-PROJECT-22K20384, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-20K14532, KAKENHI-PLANNED-18H05438
[Journal Article] EMPRESS. IX. Extremely Metal-poor Galaxies are Very Gas-rich Dispersion-dominated Systems: Will the James Webb Space Telescope Witness Gaseous Turbulent High-z Primordial Galaxies?2023
- Author(s)
  Isobe Yuki, Ouchi Masami, Nakajima Kimihiko, Mawatari Ken, et al.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 951 Issue: 2 Pages: 102-102
- DOI
  10.3847/1538-4357/accc87
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14516, KAKENHI-PROJECT-21K13909, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-23KJ2148, KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-22K03670, KAKENHI-PROJECT-21K03622, KAKENHI-PROJECT-18K13588, KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-21K13966, KAKENHI-PROJECT-20K22373, KAKENHI-PROJECT-22KJ0586, KAKENHI-PLANNED-19H05810, KAKENHI-PUBLICLY-23H04009, KAKENHI-PROJECT-19H00697, KAKENHI-PROJECT-20H00171, KAKENHI-PROJECT-21H04496, KAKENHI-PROJECT-23K20866
[Journal Article] Dark Matter Halo Properties of the Galactic Dwarf Satellites: Implication for Chemo-dynamical Evolution of the Satellites and a Challenge to Lambda Cold Dark Matter2023
- Author(s)
  Hayashi Kohei、Hirai Yutaka、Chiba Masashi、Ishiyama Tomoaki
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 953 Issue: 2 Pages: 185-185
- DOI
  10.3847/1538-4357/ace33e
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K13909, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-20K14532, KAKENHI-PLANNED-18H05437, KAKENHI-PUBLICLY-23H04009, KAKENHI-PROJECT-23K20232, KAKENHI-PROJECT-23K20863
[Journal Article] Formation process of the Orion Nebula Cluster2023
- Author(s)
  Fujii Michiko S.、Wang Long、Saitoh Takayuki R.、Hirai Yutaka、Shimajiri Yoshito
- Journal Title
  
  Proceedings of the International Astronomical Union
  
  Volume: 16 Issue: S362 Pages: 258-261
- DOI
  10.1017/s1743921322001508
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-22KJ0157
[Journal Article] Chemodynamically Tagged Groups of CEMP Stars in the Halo of the Milky Way. I. Untangling the Origins of CEMP-s and CEMP-no Stars2023
- Author(s)
  Zepeda Joseph、Beers Timothy C.、Placco Vinicius M.、Shank Derek、Gudin Dmitrii、Hirai Yutaka、Mardini Mohammad、Pifer Colin、Catapano Thomas、Calagna Sean
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 947 Issue: 1 Pages: 23-23
- DOI
  10.3847/1538-4357/acbbcc
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-20K14532
[Journal Article] Probing the Galactic halo with RR Lyrae stars - V. Chemistry, kinematics, and dynamically tagged groups2023
- Author(s)
  Cabrera Garcia Jonathan、Beers Timothy C、Huang Yang、Li Xin-Yi、Liu Gaochao、Zhang Huawei、Hong Jihye、Lee Young Sun、Shank Derek、Gudin Dmitrii、Hirai Yutaka、Komater Dante
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 527 Issue: 3 Pages: 8973-8990
- DOI
  10.1093/mnras/stad3674
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-20K14532
[Journal Article] 3D-Spatiotemporal forecasting the expansion of supernova shells using deep learning towards high-resolution galaxy simulations2023
- Author(s)
  Hirashima Keiya、Moriwaki Kana、Fujii Michiko S、Hirai Yutaka、Saitoh Takayuki R、Makino Junichiro
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 526 Issue: 3 Pages: 4054-4066
- DOI
  10.1093/mnras/stad2864
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-22KJ1153, KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-20K14532
[Journal Article] The Origin of the Large Magellanic Cloud Globular Cluster NGC 20052023
- Author(s)
  Piatti Andres E.、Hirai Yutaka
- Journal Title
  
  The Astronomical Journal
  
  Volume: 165 Issue: 5 Pages: 213-213
- DOI
  10.3847/1538-3881/acc6d1
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-20K14532
[Journal Article] Predicting the Expansion of Supernova Shells Using Deep Learning toward Highly Resolved Galaxy Simulations2023
- Author(s)
  Hirashima Keiya、Moriwaki Kana、Fujii Michiko、Hirai Yutaka、Saitoh Takayuki、Makino Junichiro
- Journal Title
  
  Proceedings of the International Astronomical Union
  
  Volume: 16 Issue: S362 Pages: 209-214
- DOI
  10.1017/s1743921322001739
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-22KJ1153
[Journal Article] SIRIUS Project IV. The formation history of the Orion Nebula Cluster driven by clump mergers2022
- Author(s)
  Fujii Michiko S、Wang Long、Hirai Yutaka、Shimajiri Yoshito、Kumamoto Jun、Saitoh Takayuki
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 514 Issue: 2 Pages: 2513-2526
- DOI
  10.1093/mnras/stac1496
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-21H04499, KAKENHI-PROJECT-23K22530
[Journal Article] Origin of highly r-process-enhanced stars in a cosmological zoom-in simulation of a Milky Way-like galaxy2022
- Author(s)
  Hirai Yutaka、Beers Timothy C、Chiba Masashi、Aoki Wako、Shank Derek、Saitoh Takayuki R、Okamoto Takashi、Makino Junichiro
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 517 Issue: 4 Pages: 4856-4874
- DOI
  10.1093/mnras/stac2489
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-20K14532, KAKENHI-PUBLICLY-21H05448, KAKENHI-PROJECT-21H04496, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-19H01931, KAKENHI-PLANNED-20H05861, KAKENHI-PROJECT-21H04499
[Journal Article] EMPRESS. VIII. A New Determination of Primordial He Abundance with Extremely Metal-poor Galaxies: A Suggestion of the Lepton Asymmetry and Implications for the Hubble Tension2022
- Author(s)
  Matsumoto Akinori、Ouchi Masami、Nakajima Kimihiko、Kawasaki Masahiro、Murai Kai、 et al
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 941 Issue: 2 Pages: 167-167
- DOI
  10.3847/1538-4357/ac9ea1
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K03567, KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-21K03622, KAKENHI-PROJECT-22K03670, KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-21K13909, KAKENHI-PROJECT-21K13966, KAKENHI-PROJECT-20K22373, KAKENHI-PUBLICLY-21H05447, KAKENHI-PROJECT-19H00697, KAKENHI-PROJECT-20H00171, KAKENHI-PROJECT-20H00181, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-18K13578, KAKENHI-PROJECT-20J20248, KAKENHI-PROJECT-23K20232, KAKENHI-PROJECT-23K20866, KAKENHI-PLANNED-19H05810, KAKENHI-PROJECT-21H04499, KAKENHI-PROJECT-20K14508
[Journal Article] SIRIUS Project V. Formation of off-centre ionized bubbles associated with Orion Nebula Cluster2022
- Author(s)
  Fujii Michiko S、Hattori Kohei、Wang Long、Hirai Yutaka、Kumamoto Jun、Shimajiri Yoshito、Saitoh Takayuki R
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 514 Issue: 1 Pages: 43-54
- DOI
  10.1093/mnras/stac808
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-21H04499, KAKENHI-PROJECT-23K22530
[Journal Article] Predicting the Expansion of Supernova Shells for High-Resolution Galaxy Simulations Using Deep Learning2022
- Author(s)
  Hirashima K.、Moriwaki K.、Fujii M. S.、Hirai Y.、Saitoh T.、Makino J.
- Journal Title
  
  Journal of Physics: Conference Series
  
  Volume: 2207 Issue: 1 Pages: 012050-012050
- DOI
  10.1088/1742-6596/2207/1/012050
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-21H04499
[Journal Article] R-process enhancements of Gaia-Enceladus in GALAH DR32021
- Author(s)
  Matsuno T.、Hirai Y.、Tarumi Y.、Hotokezaka K.、Tanaka M.、Helmi A.
- Journal Title
  
  Astronomy & Astrophysics
  
  Volume: 650 Pages: 110-119
- DOI
  10.1051/0004-6361/202040227
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-17H06363, KAKENHI-PROJECT-19H01933, KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-19H00694, KAKENHI-ORGANIZER-17H06357
[Journal Article] SIRIUS project. III. Star-by-star simulations of star cluster formation using a direct N -body integrator with stellar feedback2021
- Author(s)
 Fujii Michiko S、Saitoh Takayuki R、Hirai Yutaka、Wang Long
- Journal Title
 
 Publications of the Astronomical Society of Japan
 
 Volume: 73 Issue: 4 Pages: 1074-1099
- DOI
 10.1093/pasj/psab061
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
 KAKENHI-PROJECT-19H01933, KAKENHI-PROJECT-19F19317, KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-21K03633, KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-21H04499, KAKENHI-ORGANIZER-17H06357
[Journal Article] SIRIUS project. II. A new tree-direct hybrid code for smoothed particle hydrodynamics/N-body simulations of star clusters2021
- Author(s)
 Fujii Michiko S、Saitoh Takayuki R、Wang Long、Hirai Yutaka
- Journal Title
 
 Publications of the Astronomical Society of Japan
 
 Volume: 73 Issue: 4 Pages: 1057-1073
- DOI
 10.1093/pasj/psab037
- Peer Reviewed / Open Access
- Data Source
 KAKENHI-PROJECT-19H01933, KAKENHI-PROJECT-19F19317, KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-21K03633, KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-21H04499, KAKENHI-ORGANIZER-17H06357
[Journal Article] Neutron star mergers as the astrophysical site of the r-process in the Milky Way and its satellite galaxies2021
- Author(s)
  Wanajo Shinya、Hirai Yutaka、Prantzos Nikos
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 505 Issue: 4 Pages: 5862-5883
- DOI
  10.1093/mnras/stab1655
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H01933, KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-21H04499
[Journal Article] SIRIUS project. I. Star formation models for star-by-star simulations of star clusters and galaxy formation2021
- Author(s)
  Hirai Yutaka、Fujii Michiko S、Saitoh Takayuki R
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 73 Issue: 4 Pages: 1036-1056
- DOI
  10.1093/pasj/psab038
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K03614, KAKENHI-PROJECT-21K03633, KAKENHI-PROJECT-20K14532, KAKENHI-PROJECT-22KJ0157, KAKENHI-PROJECT-21H04499
[Journal Article] Enrichment of Heavy Elements in Chemodynamical Evolution of Dwarf Galaxies2020
- Author(s)
  Hirai Yutaka、Wanajo Shinya、Saitoh Takayuki R.
- Journal Title
  
  JPS Conference Proceedings
  
  Volume: 31 Pages: 011009-011009
- DOI
  10.7566/jpscp.31.011009
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K21057
[Journal Article] Enrichment of Strontium in Dwarf Galaxies2019
- Author(s)
  Hirai Yutaka、Wanajo Shinya、Saitoh Takayuki R.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 885 Issue: 1 Pages: 33-33
- DOI
  10.3847/1538-4357/ab4654
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K21057
[Journal Article] Enrichment of Heavy Elements in Chemo-Dynamical Simulations of Dwarf Galaxies2019
- Author(s)
  Hirai Yutaka、Saitoh Takayuki R.、Wanajo Shinya、Fujii Michiko S.
- Journal Title
  
  Proceedings of the International Astronomical Union
  
  Volume: 14 Issue: S344 Pages: 197-200
- DOI
  10.1017/s1743921318005227
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] Subaru PFS Mock Observations of Satellites in a Cosmological Zoom-in Simulation2024
- Author(s)
  Hirai Yutaka
- Organizer
  Formation and Evolution of the Galaxies with Subaru PFS: Satellite workshop
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] 球状星団形成期の星の暴走的合体による超大質量星形成と周囲のガスの汚染2024
- Author(s)
  藤井通子, 谷川衝, Long Wang, 斎藤貴之, 平居悠
- Organizer
  日本天文学会春期年会
- Data Source
  KAKENHI-PROJECT-21K03614
[Presentation] 高赤方偏移銀河における星団形成とその化学組成2024
- Author(s)
  斎藤貴之, 藤井通子, 平居悠, 磯部優樹
- Organizer
  日本天文学会春期年会
- Data Source
  KAKENHI-PROJECT-21K03614
[Presentation] Chemo-dynamical evolution of satellites around a Milky Way-like galaxy2024
- Author(s)
  Hirai Yutaka
- Organizer
  Dark Matter in the Universe: The Present and Future of Galactic Archaeology and Near-field Cosmology
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] Chemo-dynamical evolution of satellites around a Milky Way-like galaxy2024
- Author(s)
  平居悠
- Organizer
  2023年度国立天文台CfCAユーザーズミーティング
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] Subaru PFS Mock Observations of Satellites in a Cosmological Zoom-in Simulation of a Milky Way-like Galaxy2024
- Author(s)
  平居悠、Kirby Evan N、Anguiano Borja、Beers Timothy C、千葉柾司、林航平、斎藤貴之、石垣美歩
- Organizer
  日本天文学会2024年春季年会
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] 正二十面体による HII 領域推定の拡張:統計的な振る舞いについて2024
- Author(s)
  王蘊玉, 斎藤貴之, 牧野淳一郎, 藤井通子, 平居悠
- Organizer
  日本天文学会春期年会
- Data Source
  KAKENHI-PROJECT-21K03614
[Presentation] 高分解能矮小銀河形成シミュレーションで探るコア-カスプ問題2023
- Author(s)
  金子克大 , 藤井通子 , 斎藤貴之 , 平居悠
- Organizer
  日本天文学会 2023年春季年会
- Data Source
  KAKENHI-PROJECT-21K03614
[Presentation] Formation of highly r-process-enhanced stars in a cosmological zoom-in simulation of a Milky Way-like galaxy2023
- Author(s)
  平居悠
- Organizer
  2022年度国立天文台 CfCA ユーザーズミーティング
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] Formation of highly r-process-enhanced stars in a cosmological zoom-in simulation of a Milky Way-like galaxy2023
- Author(s)
  平居悠
- Organizer
  国立天文台 CfCA ユーザーズミーティング
- Data Source
  KAKENHI-PROJECT-21H04499
[Presentation] Star-by-Star Simulations of Star Clusters and Galaxies2023
- Author(s)
  Yutaka Hirai, Michiko S. Fujii, Takayuki R. Saitoh, Long Wang　SIRIUS Project
- Organizer
  The 241st meeting of the American Astronomical Society
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04499
[Presentation] Chemo-dynamical evolution of the Milky Way2023
- Author(s)
  Hirai Yutaka
- Organizer
  MODEST-23 JM
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] 正二十面体による HII 領域推定の拡張2023
- Author(s)
  王蘊玉 , 斎藤貴之 , 牧野淳一郎 , 藤井通子 , 平居悠
- Organizer
  日本天文学会 2023年春季年会
- Data Source
  KAKENHI-PROJECT-21K03614
[Presentation] 銀河形成シミュレーションで探るrプロセス元素に富んだ星の起源2023
- Author(s)
  平居悠
- Organizer
  シミュレーション天文学のこれまでとこれからーハードウェア・アプリケーション・サイエンスー
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] Star-by-star 銀河形成シミュレーションに向けた超新星フィードバックのサロゲートモデリング2023
- Author(s)
  平島敬也, 藤井通子, Shirley Ho, 森脇可奈, 平居悠, 斎藤貴之, 牧野淳一郎
- Organizer
  日本天文学会秋季年会
- Data Source
  KAKENHI-PROJECT-21K03614
[Presentation] SIRIUS Project: Star-by-Star Simulations of Star Clusters and Galaxies2023
- Author(s)
  Yutaka Hirai, Michiko S. Fujii, Takayuki R. Saitoh, Long Wang
- Organizer
  The 241st meeting of the American Astronomical Society
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] Chemical Evolution of Galaxies in the Local Group2023
- Author(s)
  Hirai Yutaka
- Organizer
  The 1st IReNA-Ukakuren Joint Workshop "Advancing Professional Development in Nuclear Astrophysics and Beyond"
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] 球状星団形成期の星の暴走的合体からの中質量ブラックホール形成2023
- Author(s)
  藤井通子, 谷川衝, Long Wang, 斎藤貴之, 平居悠
- Organizer
  日本天文学会秋季年会
- Data Source
  KAKENHI-PROJECT-21K03614
[Presentation] The History of the Milky Way2023
- Author(s)
  Hirai Yutaka
- Organizer
  Kalamazoo Astronomical Society General Meeting
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] SIRIUS Project: Star-by-Star Simulations of Star Clusters and Galaxies2023
- Author(s)
  Yutaka Hirai, Michiko Fujii, Takayuki Saitoh, Long Wang
- Organizer
  MEETING OF THE AMERICAN ASTRONOMICAL SOCIETY
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K03614
[Presentation] Origin of r-process enhanced stars in cosmological zoom-in simulations of Milky Way-like galaxies2022
- Author(s)
  Yutaka Hirai, Timothy C. Beers, Masashi Chiba, Wako Aoki, Derek Shank, Takayuki R. Saitoh, Takashi Okamoto, Junichiro Makino
- Organizer
  The 240th meeting of the American Astronomical Society
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04499
[Presentation] Origin of r-process elements and the Milky Way formation2022
- Author(s)
  平居悠
- Organizer
  宇核連-RCNP研究会「宇宙核物理の展開」(ANP2022)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] Numerical models of the r-process　RR Lyrae Stars2022
- Author(s)
  Yutaka Hirai
- Organizer
  Galactic Structure and Chemistry
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04499
[Presentation] Chemodynamical evolution of dwarf galaxies based on cosmological zoom-in simulations: Perspective for PFS survey2022
- Author(s)
  Yutaka Hirai
- Organizer
  Subaru PFS 13th collaboration meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] Origin of r-process enhanced stars in cosmological zoom-in simulations of Milky Way-like galaxies2022
- Author(s)
  Yutaka Hirai, Timothy C. Beers, Masashi Chiba, Wako Aoki, Derek Shank, Takayuki R. Saitoh, Takashi Okamoto, Junichiro Makino
- Organizer
  The 240th meeting of the American Astronomical Society
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] Origin of r-process enhanced stars in simulations of Milky Way-like galaxies2022
- Author(s)
  Yutaka Hirai, Timothy C. Beers, Masashi Chiba, Wako Aoki, Derek Shank, Takayuki R. Saitoh, Takashi Okamoto, Junichiro Makino
- Organizer
  2022 JINA-CEE Frontiers in Nuclear Astrophysics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] Numerical models of the r-process2022
- Author(s)
  Yutaka Hirai
- Organizer
  RR Lyrae Stars, Galactic Structure and Chemistry
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] Orion Nebula の形成と大質量星の運動について2022
- Author(s)
  藤井通子,Long Wang,斎藤貴之,服部公平,平居悠
- Organizer
  日本天文学会2022年春季年会
- Data Source
  KAKENHI-PROJECT-21K03614
[Presentation] Simulations Resolving Individual Stars (SIRIUS) project2022
- Author(s)
  平居悠
- Organizer
  令和2年度国立天文台CfCAユーザーズミーティング
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] Origin of r-process elements and the Milky Way formation2022
- Author(s)
  平居悠
- Organizer
  宇核連-RCNP研究会「宇宙核物理の展開」(ANP2022)
- Invited
- Data Source
  KAKENHI-PROJECT-21H04499
[Presentation] Origin of r-process enhanced stars in simulations of Milky Way-like galaxies2022
- Author(s)
  Yutaka Hirai, Timothy C. Beers, Masashi Chiba, Wako Aoki, Derek Shank, Takayuki R. Saitoh, Takashi Okamoto, Junichiro Makino
- Organizer
  2022 JINA-CEE Frontiers in Nuclear Astrophysics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04499
[Presentation] 球状星団形成期の星の合体と超大質量星形成2022
- Author(s)
  藤井通子, 谷川衝, Long Wang, 斎藤貴之, 平居悠
- Organizer
  日本天文学会 2022年秋季年会
- Data Source
  KAKENHI-PROJECT-21K03614
[Presentation] Chemo-dynamical properties of r-process enhanced stars in the Milky Way-like galaxies2021
- Author(s)
  平居悠
- Organizer
  令和2年度国立天文台CfCAユーザーズミーティング
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] 次世代銀河形成シミュレーションへ向けて2021
- Author(s)
  斎藤貴之,行方大輔,岩澤全規,平居悠,細野七月,野村昴太郎,坪内美幸,牧野淳一郎,岡本崇,藤井通子,平島敬也
- Organizer
  第15回アクセラレーション技術発表討論会「富岳による高度科学技術計算」
- Invited
- Data Source
  KAKENHI-PROJECT-21K03614
[Presentation] 銀河形成シミュレーションで探るrプロセス元素に富んだ星の動力学性質2021
- Author(s)
  平居悠、青木和光、Timothy C. Beers、千葉柾司、斎藤貴之、岡本崇、牧野淳一郎
- Organizer
  日本天文学会2021年春季年会
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] Formation of the Orion Nebula Cluster2021
- Author(s)
  藤井通子,Long Wang,斎藤貴之,服部公平,平居悠
- Organizer
  日本天文学会 2021 年秋季年会
- Data Source
  KAKENHI-PROJECT-21K03614
[Presentation] S-process elements in dwarf galaxies2020
- Author(s)
  平居悠
- Organizer
  Japan-German Joint Workshop on Chemical Evolution in the Early Universe
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] Galactic Archaeology with Heavy Elements2020
- Author(s)
  平居悠
- Organizer
  Division of Science + Center for Computational Astrophysics workshop 2020
- Invited
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] 個々の星を分解した銀河スケールシミュレーションに向けた星形成モデル構築2020
- Author(s)
  平居悠、藤井通子、斎藤貴之
- Organizer
  日本天文学会2020年春季年会
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] Chemo-dynamics of the Milky Way and dwarf galaxies2020
- Author(s)
  平居悠
- Organizer
  2020 meeting of the JSPS-CAS collaboration program "Origin of the Milky Way halo structure explored with LAMOST and Subaru"
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14532
[Presentation] 銀河の化学動力学進化シミュレーションから探る中性子捕獲元素の起源と進化2019
- Author(s)
  平居悠
- Organizer
  第32回理論懇シンポジウム
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] 銀河の化学力学進化シミュレーションから探る r-process 元素の起源と進化2019
- Author(s)
  平居　悠
- Organizer
  核データと重元素合成を中心とする宇宙核物理研究会
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] Enrichment of Light Neutron-Capture Elements in Dwarf Galaxies2019
- Author(s)
  平居　悠
- Organizer
  国立天文台天文シミュレーションプロジェクト 2018年度ユーザーズミーティング
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] Prospects for Simulations of Galaxy Formation2019
- Author(s)
  平居　悠
- Organizer
  令和元年度国立天文台天文シミュレーションプロジェクトユーザーズミーティング
- Invited
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] Enrichment of Heavy Elements in Local Group Galaxies2019
- Author(s)
  Hirai Yutaka
- Organizer
  6th Galaxy Evolution Workshop
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] 銀河の化学進化とrプロセス2019
- Author(s)
  平居　悠
- Organizer
  原子核物理でつむぐrプロセス
- Invited
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] Enrichment of Heavy Elements in Chemodynamical Evolution Models2019
- Author(s)
  Hirai Yutaka、Wanajo Shinya、Saitoh Takayuki R.
- Organizer
  The 15th International Symposium on Origin of Matter and Evolution of Galaxies
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] Chemo-dynamical evolution of the Local Group galaxies2019
- Author(s)
  Hirai Yutaka
- Organizer
  JINA-CEE IReNA/NAOJ workshop
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] 銀河の化学力学進化シミュレーションから探る軽い中性子捕獲元素の進化史2019
- Author(s)
  平居　悠、和南城伸也、斎藤貴之
- Organizer
  日本天文学会2019年春季年会
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] Enrichment of Heavy Elements in the Local Group Galaxies2018
- Author(s)
  Yutaka Hirai
- Organizer
  Taiwanese Theoretical Astrophysics Workshop
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] Metal Mixing in Galaxies as a Probe of Understanding Signatures from First Stars2018
- Author(s)
  Yutaka Hirai
- Organizer
  Stellar Archaeology as a Time Machine to the First Stars
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] Understanding the Enrichment of Heavy Elements by Galactic Chemo-Dynamical Evolution Models2018
- Author(s)
  Yutaka Hirai
- Organizer
  Chemical evolution and nucleosynthesis across the Galaxy
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] r-process元素の起源と進化2018
- Author(s)
  平居　悠
- Organizer
  初代星・初代銀河研究会2018
- Invited
- Data Source
  KAKENHI-PROJECT-19K21057
[Presentation] Enrichment of heavy elements in chemo-dynamical simulations of dwarf galaxies2018
- Author(s)
  Yutaka Hirai
- Organizer
  XXXth General Assembly of the International Astronomical Union
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K21057

1. Fujii Michiko (90722330)

# of Collaborated Projects: 3 results

# of Collaborated Products: 17 results
2. 斎藤貴之 (40399291)

# of Collaborated Projects: 3 results

# of Collaborated Products: 18 results
3. 馬場淳一 (90569914)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. 青木和光 (20321581)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
5. 冨永望 (00550279)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. 諸隈智貴 (10594674)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. 本田敏志 (20425408)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 石垣美歩 (30583611)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 野本憲一 (90110676)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. 須田拓馬 (90374735)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. TANAKA Masaomi

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
12. 馬渡健

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
13. 福島肇

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
14. 森昇志

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
15. 林航平

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
16. 川崎雅裕

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Hirai Yutaka 平居 悠

HIRAI Yutaka 平居 悠

Research Projects

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Co-Researchers

Formation of massive star clusters using star-by-star simulations

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球状星団の元素組成異常の起源の解明

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First stars nucleosyntheis and early galaxy formation explored by searches for bright metal-poor stars

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Unraveling the Formation of the Milky Way by cosmological simulations and GaiaPrincipal Investigator

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Binary black holes originating from star clusters in galaxy simulations

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Formation and evolution of UFDs in cosmological zoom-in simulationsPrincipal Investigator

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[Book] Understanding the Enrichment of Heavy Elements by the Chemodynamical Evolution Models of Dwarf Galaxies2019

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[Journal Article] EMPRESS. XII. Statistics on the Dynamics and Gas Mass Fraction of Extremely Metal-poor Galaxies2024

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[Journal Article] EMPRESS. XI. SDSS and JWST Search for Local and z ~4-5 Extremely Metal-poor Galaxies (EMPGs): Clustering and Chemical Properties of Local EMPGs2023

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[Journal Article] Insights on the Sun Birth Environment in the Context of Star Cluster Formation in Hub?Filament Systems2023

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[Journal Article] EMPRESS. IX. Extremely Metal-poor Galaxies are Very Gas-rich Dispersion-dominated Systems: Will the James Webb Space Telescope Witness Gaseous Turbulent High-z Primordial Galaxies?2023

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[Journal Article] Dark Matter Halo Properties of the Galactic Dwarf Satellites: Implication for Chemo-dynamical Evolution of the Satellites and a Challenge to Lambda Cold Dark Matter2023

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[Journal Article] Formation process of the Orion Nebula Cluster2023

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[Journal Article] Chemodynamically Tagged Groups of CEMP Stars in the Halo of the Milky Way. I. Untangling the Origins of CEMP-s and CEMP-no Stars2023

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Hirai Yutaka 平居悠

HIRAI Yutaka 平居悠