The Common Envelope Evolution Outcome-A Case Study on Hot Subdwarf B Stars | |
Ge HW(葛宏伟)1,2,3; Tout, Christopher A.2; Chen XF(陈雪飞)1,3; Kruckow, Matthias U.1,3; Chen HL(陈海亮)1,3; Jiang DK(姜登凯)1,3; Li ZW(李振威)1,3; Liu ZW(柳正伟)1,3; Han ZW(韩占文)1,3 | |
刊名 | ASTROPHYSICAL JOURNAL |
2022-07-01 | |
卷号 | 933期号:2 |
ISSN号 | 0004-637X |
DOI | 10.3847/1538-4357/ac75d3 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | Common envelope evolution (CEE) physics plays a fundamental role in the formation of binary systems, such as merging stellar gravitational wave sources, pulsar binaries, and Type Ia supernovae. A precisely constrained CEE has become more important in the age of large surveys and gravitational wave detectors. We use an adiabatic mass-loss model to explore how the total energy of the donor changes as a function of the remnant mass. This provides a more self-consistent way to calculate the binding energy of the donor. For comparison, we also calculate the binding energy through integrating the total energy from the core to the surface. The outcome of CEE is constrained by total energy conservation at the point at which both components' radii shrink back within their Roche lobes. We apply our results to 142 hot subdwarf binaries. For shorter orbital period hot subdwarf B stars (sdBs), the binding energy is highly consistent. For longer orbital period sdBs in our samples, the binding energy can differ by up to a factor of 2. The common envelope (CE) efficiency parameter beta(CE) becomes smaller than alpha (CE) for the final orbital period log(10)P(orb)/days>-0.5 log(10)q log(10)alpha(CE) log(10)beta(CE) |
学科主题 | 天文学 ; 恒星与银河系 ; 恒星形成与演化 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
资助项目 | National Key R&D Program of China[2021YFA1600400/3] ; National Natural Science Foundation of China[12173081] ; National Natural Science Foundation of China[12090040/3] ; National Natural Science Foundation of China[11733008] ; National Natural Science Foundation of China[12125303] ; National Natural Science Foundation of China[11673058] ; Yunnan Fundamental Research Projects[202101AV070001] ; key research program of frontier sciences, CAS[ZDBS-LY-7005] ; CAS, Light of West China Program ; Churchill College ; [12073070] ; [CMS-CSST-2021-A08] ; [12103086] ; [202101AU070276] |
WOS关键词 | ADIABATIC MASS-LOSS ; GIANT BRANCH ; BINARIES ; ORIGIN ; SUPERNOVAE ; STABILITY ; PARAMETER ; COMPANION ; MODELS ; UPTURN |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:000822918400001 |
资助机构 | National Key R&D Program of China[2021YFA1600400/3] ; National Natural Science Foundation of China[12173081, 12090040/3, 11733008, 12125303, 11673058] ; Yunnan Fundamental Research Projects[202101AV070001] ; key research program of frontier sciences, CAS[ZDBS-LY-7005] ; CAS, Light of West China Program ; Churchill College ; [12073070] ; [CMS-CSST-2021-A08] ; [12103086] ; [202101AU070276] |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25342] |
专题 | 云南天文台_大样本恒星演化研究组 |
通讯作者 | Ge HW(葛宏伟) |
作者单位 | 1.Key Laboratory for Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, Kunming 650216, People's Republic of China 2.Institute of Astronomy, The Observatories, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK; cxf@ynao.ac.cn; 3.Yunnan Observatories, Chinese Academy of Sciences, 396 YangFangWang, Guandu District, Kunming, 650216, People's Republic of China; gehw@ynao.ac.cn, cat@ast.cam.ac.uk, zhanwenhan@ynao.ac.cn; |
推荐引用方式 GB/T 7714 | Ge HW,Tout, Christopher A.,Chen XF,et al. The Common Envelope Evolution Outcome-A Case Study on Hot Subdwarf B Stars[J]. ASTROPHYSICAL JOURNAL,2022,933(2). |
APA | Ge HW.,Tout, Christopher A..,Chen XF.,Kruckow, Matthias U..,Chen HL.,...&Han ZW.(2022).The Common Envelope Evolution Outcome-A Case Study on Hot Subdwarf B Stars.ASTROPHYSICAL JOURNAL,933(2). |
MLA | Ge HW,et al."The Common Envelope Evolution Outcome-A Case Study on Hot Subdwarf B Stars".ASTROPHYSICAL JOURNAL 933.2(2022). |
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