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Mind the Gap: The Location of the Lower Edge of the Pair-instability Supernova Black Hole Mass Gap
文献类型：期刊论文
| 作者 | Farmer,R.6; Renzo,M.5; de Mink,S. E.4,6; Marchant,P.3; Justham,S.1,2,6 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2019-12-10 |
| 卷号 | 887期号:1 |
| ISSN号 | 0004-637X |
| 关键词 | Massive stars Stellar mass loss Supernovae Astrophysical black holes Stellar mass black holes Stellar evolution |
| DOI | 10.3847/1538-4357/ab518b |
| 英文摘要 | Abstract Detections of gravitational waves are now starting to probe the mass distribution of stellar mass black holes (BHs). Robust predictions from stellar models are needed to interpret these. Theory predicts the existence of a gap in the BH mass distribution because of pair-instability supernovae. The maximum BH mass below the gap is the result of pulsational mass loss. We evolve massive helium stars through their late hydrodynamical phases of evolution using the open-source MESA stellar evolution code. We find that the location of the lower edge of the mass gap at 45 is remarkably robust against variations in the metallicity (≈3 ), the treatment of internal mixing (≈1 ), and stellar wind mass loss (≈4 ), making it the most robust predictor for the final stages of the evolution of massive stars. The reason is that the onset of the instability is dictated by the near-final core mass, which in turn sets the resulting BH mass. However, varying the reaction rate within its 1σ uncertainties shifts the location of the gap between 40 and 56 . We provide updated analytic fits for population synthesis simulations. Our results imply that the detection of merging BHs can provide constraints on nuclear astrophysics. Furthermore, the robustness against metallicity suggests that there is a universal maximum for the location of the lower edge of the gap, which is insensitive to the formation environment and redshift for first-generation BHs. This is promising for the possibility to use the location of the gap as a “standard siren” across the universe. |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:0004-637X-887-1-AB518B |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/28670]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People's Republic of China 2.School of Astronomy & Space Science, University of the Chinese Academy of Sciences, Beijing 100012, People's Republic of China 3.Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA 4.Center for Astrophysics—Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA 5.Computational Astrophysics, Flatiron Institute, New York, NY 10010, USA 6.Anton Pannekoek Institute for Astronomy and GRAPPA, University of Amsterdam, NL-1090 GE Amsterdam, The Netherlands; r.j.farmer@uva.nl |
| 推荐引用方式 GB/T 7714 | Farmer,R.,Renzo,M.,de Mink,S. E.,et al. Mind the Gap: The Location of the Lower Edge of the Pair-instability Supernova Black Hole Mass Gap[J]. The Astrophysical Journal,2019,887(1). |
| APA | Farmer,R.,Renzo,M.,de Mink,S. E.,Marchant,P.,&Justham,S..(2019).Mind the Gap: The Location of the Lower Edge of the Pair-instability Supernova Black Hole Mass Gap.The Astrophysical Journal,887(1). |
| MLA | Farmer,R.,et al."Mind the Gap: The Location of the Lower Edge of the Pair-instability Supernova Black Hole Mass Gap".The Astrophysical Journal 887.1(2019). |
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来源：国家天文台
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