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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 | 2017/12 |
| 形態種別 | 学術雑誌 |
| 査読 | 査読あり |
| 標題 | Formation of intermediate-mass black holes through runaway collisions in the first star clusters |
| 執筆形態 | 共著 |
| 掲載誌名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
| 出版社・発行元 | OXFORD UNIV PRESS |
| 巻・号・頁 | 472(2),pp.1677-1684 |
| 著者・共著者 | ◎Yuya Sakurai,Naoki Yoshida,Michiko S. Fujii,Shingo Hirano |
| 概要 | We study the formation of massive black holes in the first star clusters. We first locate star-forming gas clouds in protogalactic haloes of >= 107M circle dot in cosmological hydrodynamics simulations and use them to generate the initial conditions for star clusters with masses of >= 105M circle dot. We then perform a series of direct-tree hybrid N-body simulations to follow runaway stellar collisions in the dense star clusters. In all the cluster models except one, runaway collisions occur within a few million years, and the mass of the central, most massive star reaches similar to 400-1900M circle dot. |
| DOI | 10.1093/mnras/stx2044 |
| ISSN | 0035-8711/1365-2966 |
| ORCIDのPut Code | 37237749 |
| PermalinkURL | http://orcid.org/0000-0002-4317-767X |
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