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Rates and delay times of Type Ia supernovae in the helium-enriched main-sequence donor scenario
Liu ZW(柳正伟)1,2,3,4; Stancliffe, Richard J.4
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2018-04-01
卷号475期号:4页码:5257-5267
DOI10.1093/mnras/sty172
产权排序第1完成单位
收录类别SCI
关键词Binaries: Close Supernovae: General
摘要

The nature of the progenitors of Type Ia supernovae (SNe Ia) remains a mystery. Comparing theoretical rates and delay-time distributions of SNe Ia with those inferred observationally can constrain their progenitor models. In this work, taking thermohaline mixing into account in the helium-enriched main-sequence (HEMS) donor scenario, we address rates and delay times of SNe Ia in this channel by combining the results of self-consistent binary evolution calculations with population synthesis models. We find that the Galactic SN Ia rate from the HEMS donor scenario is around 0.6-1.2 x 10(-3) yr(-1), which is about 30 per cent of the observed rate. Delay times of SNe Ia in this scenario cover a wide range of 0.1-1.0 Gyr. We also present the pre-explosion properties of companion stars in the HEMS donor scenario, which will be helpful for placing constraints on SN Ia progenitors through analysing their pre-explosion images.

资助项目Alexander von Humboldt Foundation
项目资助者Alexander von Humboldt Foundation
语种英语
学科领域天文学 ; 恒星与银河系 ; 恒星物理学
学科门类理学 ; 理学::天文学
文章类型Article
出版者OXFORD UNIV PRESS
出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS记录号WOS:000428835700067
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]REVERSE DETONATION MODELS ; CORE-DEGENERATE SCENARIO ; MASS-RATIO DISTRIBUTION ; DOUBLE WHITE-DWARFS ; METAL-POOR STARS ; EXPLOSION MODELS ; COMMON-ENVELOPE ; BINARY-SYSTEMS ; SPECTROSCOPIC BINARIES ; CIRCUMSTELLAR MATERIAL
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/12213
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
通讯作者Liu ZW(柳正伟)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming 650216, P.R. China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming 650216, P.R. China
3.Center for Astronomical Mega-Science, CAS, Beijing 100012, P.R. China
4.Argelander-Institut fur Astronomie, Auf dem H ¨ ugel 71, D-53121 Bonn, Germany
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GB/T 7714
Liu ZW,Stancliffe, Richard J.. Rates and delay times of Type Ia supernovae in the helium-enriched main-sequence donor scenario[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,475(4):5257-5267.
APA Liu ZW,&Stancliffe, Richard J..(2018).Rates and delay times of Type Ia supernovae in the helium-enriched main-sequence donor scenario.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,475(4),5257-5267.
MLA Liu ZW,et al."Rates and delay times of Type Ia supernovae in the helium-enriched main-sequence donor scenario".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 475.4(2018):5257-5267.
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