Presentations -
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種族III原始星星周円盤分裂と状態方程式の硬さについて
須佐 元(甲南大学)
日本天文学会2023年春季年会 (立教大学) 2023.3 日本天文学会
Event date： 2023.3
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収縮する始原ガスコアで増幅された乱流の飽和と散逸
東 翔(甲南大学), 須佐 元(甲南大学), 千秋 元(東北大学)
日本天文学会2022年春季年会 (広島大学) 2022.3 日本天文学会
Event date： 2022.3
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初代星原始星連星の合体機構
桐原 崇亘(甲南大学), 須佐 元 (甲南大学), 細川隆史 (京都大学)
日本天文学会2022年春季年会 (広島大学) 2022.3 日本天文学会
Event date： 2022.3
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収縮する始原ガスコアで増幅された乱流の飽和と散逸
東翔（甲南大学）, 須佐 元(甲南大学), 千秋 元(東北大学)
日本天文学会2021年秋季年会 (京都産業大学) 2021.9 日本天文学会
Event date： 2021.9
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Number of population III stars per minihalo
Hajime Susa
First Stars VI (Chile, Concepcion)
Event date： 2020.3
The numerical studies on the mass accretion phase of pop. III star formation in the last decade suggest that they could be < 1 M⊙ because of the disk fragmentation. In fact, those stars are formed as a member of a multiple system in a minihalo. In order to investigate the fragmentation process in detail, we perform a set of numerical simulations on the collapse of the gas in the minihalo. We find that the average number of stars is roughly proportional to t^0.3, where t is the elapsed time since the formation of the first protostar. In this talk I will show the latest results on this issue in which the elapsed time is much longer than the previous calculation (Susa 2019, ApJ 877:99).
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Stellar wind prevents the ISM gas from accreting onto the popIII stars
Susa, H.; Tanaka, S.; Chiaki, G.; Tominaga, N.
Francesco’s Legacy –Star Formation in Space and Time (イタリア・フィレンツェ)
Event date： 2017.6
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The effects of magnetic dissipation on the star formation in low metallicity environments
Hajime Susa, Doi Kentaro, Kazuyuki Omukai
First Stars, Galaxies, and Black Holes: Now and Then (Groningen)
Event date： 2015.6
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The IMF of the First Stars
Hajime Susa, Kenji Hasegawa, Nozomu Tominaga
The physics of first star and galaxy formation (Edinburgh)
Event date： 2014.6
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On the IMF of first stars
Susa, H.; Hasegawa, K.; Tominaga, N.
ORIGIN OF MATTER AND EVOLUTION OF GALAXIES 2013 (Tsukuba)
Event date： 2013.11
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On the Mass of First Stars
Hajime Susa
Workshop on Cosmological Radiation Transfer ComparisonIV (Austin)
Event date： 2012.12
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Radiative feedback from proto-first-stars
Hajime Susa
FIRST STARS IV - FROM HAYASHI TO THE FUTURE (Kyoto)
Event date： 2012.5
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SPH Radiative Hydrodynamics Methods
Hajime Susa
Computational Star Formation
Event date： 2010.6
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Radiative Feedback of POPIII Stars
須佐元
国際会議``HI survival through cosmic times'' (2007、招待講演)
Event date： 2007.11
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Radiation-SPH Simulations on the Radiative Feedback of POPIII Stars
須佐元
国際会議 EANAM2006 (2006, 招待講演）
Event date： 2006.11
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RHD Simulations on the Radiative Feedback from First Stars
須佐元
国際会議``The First Stars and Evolution of the Early Universe''(2006、講演)
Event date： 2006.11
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Photodissociation Feedback on the formation of first generation stars
須佐元
国際ワークショップ``2nd Workshop on Cosmological Radiative Transfer Codes Comparison'' (2005、講演)
Event date： 2005.11
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Feedback effects on the formation of first generation stars
須佐元
国際会議``Open Questions in Cosmology : the First Billion Years'' (2005、講演）
Event date： 2005.11
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Radiation-SPH
須佐元
国際会議``Workshop on Cosmological Radiative Transfer Codes Comparison''（2005、講演）
Event date： 2005.11