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ヒラノ シンゴ
Hirano Shingo 平野 信吾 所属 神奈川大学 工学部 応用物理学科 職種 助教 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2023/11 |
| 形態種別 | 学術雑誌 |
| 査読 | 査読あり |
| 標題 | Formation of Massive and Wide First-star Binaries in Radiation Hydrodynamic Simulations |
| 執筆形態 | 共著 |
| 掲載誌名 | The Astrophysical Journal |
| 掲載区分 | 国外 |
| 出版社・発行元 | American Astronomical Society |
| 巻・号・頁 | 959(1),pp.17-40 |
| 著者・共著者 | ◎Kazuyuki Sugimura,Tomoaki Matsumoto,Takashi Hosokawa,Shingo Hirano,Kazuyuki Omukai |
| 概要 | Abstract
We study the formation of Population III stars by performing radiation hydrodynamic simulations for three different initial clouds extracted from cosmological hydrodynamic simulations. Starting from the cloud collapse stage, we follow the growth of protostars by accretion for ∼105 yr until the radiative feedback from the protostars suppresses the accretion and the stellar properties are nearly fixed. We find that Population III stars form in massive and wide binary/small-multiple stellar systems, with masses >30 Msun and separations >2000 au. |
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