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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 | 2023/07 |
| 形態種別 | 学術雑誌 |
| 査読 | 査読あり |
| 標題 | Magnetic Effects Promote Supermassive Star Formation in Metal-enriched Atomic-cooling Halos |
| 執筆形態 | 共著 |
| 掲載誌名 | The Astrophysical Journal |
| 出版社・発行元 | American Astronomical Society |
| 巻・号・頁 | 952(1),pp.56-56 |
| 担当区分 | 筆頭著者,責任著者 |
| 国際共著 | 国際共著 |
| 著者・共著者 | ◎Shingo Hirano,Masahiro N. Machida,Shantanu Basu |
| 概要 | Abstract
Intermediate-mass black holes (with ≥105M⊙) are promising candidates for the origin of supermassive black holes (with ∼109M⊙) in the early universe (redshift z ∼ 6). Chon & Omukai first pointed out direct collapse black hole (DCBH) formation in metal-enriched atomic-cooling halos (ACHs), which relaxes the DCBH formation criterion. On the other hand, Hirano et al. showed that magnetic effects promote DCBH formation in metal-free ACHs. We perform a set of magnetohydrodynamical simulations to investigate star formation in magnetized ACHs with metallicities Z/Z⊙ = 0, 10−5, and 10−4. Our simulations show that the mass accretion rate onto the protostars becomes lower in metal-enriched ACHs than in metal-free ACHs. |
| DOI | 10.3847/1538-4357/acda94 |
| ISSN | 0004-637X/1538-4357 |
| PermalinkURL | https://iopscience.iop.org/article/10.3847/1538-4357/acda94 |
| researchmap用URL | https://iopscience.iop.org/article/10.3847/1538-4357/acda94/pdf |
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