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The Interaction of Type Iax Supernova Ejecta with a Helium Companion Star
Zeng, Yaotian1,2,3; Liu ZW(柳正伟)1,2,4; Han ZW(韩占文)1,2,3,4
Source PublicationThe Astrophysical Journal
2020-07-01
Volume898Issue:1Pages:7
DOI10.3847/1538-4357/ab9943
Contribution Rank第1完成单位
Indexed BySCI
KeywordType Ia supernovae Supernovae Hydrodynamics Binary stars Hydrodynamical simulations Close binary stars White dwarf stars Chandrasekhar limit
Abstract

Type Iax supernovae (SNe Iax) are an important subluminous class of SNe Ia. However, their progenitors and explosion mechanisms are not yet understood. It has been suggested that SNe Iax may be produced from weak deflagration explosions of Chandrasekhar-mass white dwarfs (WDs) in binary systems with a helium (He) star donor. In such progenitor systems, the stripped He companion material caused by the ejecta-companion interaction is expected to present some He features in their late-time spectra. However, the detection of He lines in late-time spectra of SNe Iax has not yet been successful, which gives an upper limit on the amount of stripped He mass of . In this work, we study the interaction between SN Iax ejecta and a He star companion by performing three-dimensional hydrodynamical simulations with a weak pure deflagration explosion model. We find that about of He material can be stripped off from the companion star by SN explosion, which is very close to (or lower than) the observational upper limit on the total stripped He mass in SNe Iax. We, therefore, conclude that nondetection of He lines in late-time spectra of SNe Iax could be reasonably explained if they indeed resulted from weak pure deflagration explosions of Chandrasekhar-mass WDs in progenitor systems with a He star donor.

Funding ProjectNational Natural Science Foundation of China (NSFC)[11873016] ; National Natural Science Foundation of China (NSFC)[11521303] ; National Natural Science Foundation of China (NSFC)[11733008] ; Chinese Academy of Sciences ; Yunnan Province[2019HA012] ; Yunnan Province[2017HC018]
Funding OrganizationNational Natural Science Foundation of China (NSFC)[11873016, 11521303, 11733008] ; Chinese Academy of Sciences ; Yunnan Province[2019HA012, 2017HC018]
Language英语
Subject Area天文学 ; 恒星与银河系 ; 恒星物理学 ; 恒星形成与演化
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS IDWOS:000552323000001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordWHITE-DWARF MODELS ; SMOOTHED PARTICLE HYDRODYNAMICS ; LATE-TIME SPECTROSCOPY ; RED GIANT ; MAIN-SEQUENCE ; SN 2002CX ; PROGENITOR ; EXPLOSION ; EVOLUTION ; SPECTRA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/23587
Collection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
Corresponding AuthorLiu ZW(柳正伟)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming 650216, People's Republic of China;
2.Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming 650216, People's Republic of China
3.University of Chinese Academy of Science, Beijing 100012, People's Republic of China
4.Center for Astronomical Mega-Science, CAS, Beijing 100012, People's Republic of China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zeng, Yaotian,Liu ZW,Han ZW. The Interaction of Type Iax Supernova Ejecta with a Helium Companion Star[J]. The Astrophysical Journal,2020,898(1):7.
APA Zeng, Yaotian,Liu ZW,&Han ZW.(2020).The Interaction of Type Iax Supernova Ejecta with a Helium Companion Star.The Astrophysical Journal,898(1),7.
MLA Zeng, Yaotian,et al."The Interaction of Type Iax Supernova Ejecta with a Helium Companion Star".The Astrophysical Journal 898.1(2020):7.
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