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Hydrodynamical simulations for the common-envelope wind model for Type Ia supernovae
Cui YZ(崔英朕)1,2; Meng XC(孟祥存)1,3,4; Podsiadlowski, Philipp5; Song R(宋仁)1,2
发表期刊Astronomy and Astrophysics
2022-11-01
卷号667
DOI10.1051/0004-6361/202141335
产权排序第1完成单位
收录类别SCI ; EI
关键词hydrodynamics binaries: close stars: mass-loss supernovae: general white dwarfs
摘要

Context. The single-degenerate (SD) model is one of the leading models for the progenitors of Type Ia supernovae (SNe Ia). Recently, a new version of the SD model, the common-envelope wind (CEW) model, has been proposed, which, in principle, has the potential to resolve most of the difficulties encountered by previous SD models. This model is still being developed and a number of open issues remain, such as the details of the mass-loss mechanism from the surface of the common envelope (CE), the main observational properties, and the spiral-in timescale of the binary inside the envelope. Aims. In this article, we aim to address these issues by considering hydrodynamical effects on the CE. Methods. Using the stellar evolution code MESA, we carried out a series of 1D hydrodynamical simulations of an asymptotic giant branch (AGB) star undergoing a common-envelope phase with different envelope masses (0.0007 M'0.06 M). The effect of the immersed binary was mimicked by changing the gravitational constant throughout the envelope and injecting an extra heating source at the location of the binary orbit. Results. We found that the envelopes are always dynamically unstable, leading to regular mass ejection events if the envelope is more massive than the critical value of © Y. Cui et al. 2022.

资助项目N/A
项目资助者N/A
语种英语
学科领域天文学 ; 恒星与银河系 ; 恒星形成与演化
文章类型Journal article (JA)
出版者EDP Sciences
ISSN0004-6361
URL查看原文
EI入藏号20230113345153
EI主题词Supernovae
EI分类号657.2 Extraterrestrial Physics and Stellar Phenomena - 931.1 Mechanics
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/25717
专题大样本恒星演化研究组
中国科学院天体结构与演化重点实验室
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China;
2.University of Chinese Academy of Sciences, Beijing, 100049, China;
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650216, China;
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, China;
5.University of Oxford, St Edmund Hall, Oxford, OX1 4AR, United Kingdom
第一作者单位中国科学院云南天文台
推荐引用方式
GB/T 7714
Cui YZ,Meng XC,Podsiadlowski, Philipp,et al. Hydrodynamical simulations for the common-envelope wind model for Type Ia supernovae[J]. Astronomy and Astrophysics,2022,667.
APA Cui YZ,Meng XC,Podsiadlowski, Philipp,&Song R.(2022).Hydrodynamical simulations for the common-envelope wind model for Type Ia supernovae.Astronomy and Astrophysics,667.
MLA Cui YZ,et al."Hydrodynamical simulations for the common-envelope wind model for Type Ia supernovae".Astronomy and Astrophysics 667(2022).
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