Time-varying Na i D absorption in ILRTs as a probe of circumstellar material | |
Byrne, R A8; Fraser, M8; Cai YZ(蔡永志)5,6,7; Reguitti, A2,3,4; Valerin, G1,2 | |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
2023-07-12 | |
卷号 | 524期号:2页码:2978-2993 |
关键词 | circumstellar matter stars: evolution stars: massive supernovae: general |
ISSN号 | 0035-8711 |
DOI | 10.1093/mnras/stad2049 |
产权排序 | 第2完成单位 |
文献子类 | Article |
英文摘要 | Intermediate-luminosity red transients (ILRTs) are a class of observed transient posited to arise from the production of an electron-capture supernova from a super-asymptotic giant branch star within a dusty cocoon. In this paper, we present a systematic analysis of narrow Na i D absorption as a means of probing the circumstellar environment of these events. We find a wide diversity of evolution in ILRTs in terms of line strength, time-scale, and shape. We present a simple toy model designed to predict this evolution as arising from ejecta from a central supernova passing through a circumstellar environment wherein Na ii is recombining to Na i over time. We find that while our toy model can qualitatively explain the evolution of a number of ILRTs, the majority of our sample undergoes evolution more complex than predicted. The success of using the Na i D doublet as a diagnostic tool for studying circumstellar material will rely on the availability of regular high-resolution spectral observations of multiple ILRTs, and more detailed spectral modelling will be required to produce models capable of explaining the diverse range of behaviours exhibited by ILRTs. In addition, the strength of the Na i D absorption feature has been used as a means of estimating the extinction of sources, and we suggest that the variability visible in ILRTs would prevent such methods from being used for this class of transient, and any others showing evidence of variability. |
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 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
资助项目 | Irish Research Council[GOIPG/2020/542] ; Royal Society - Science Foundation Ireland University Research Fellowship[BECAS/DOCTORADO NACIONAL 21202412] ; INAF ; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001] ; ESO Telescopes at the La Silla Paranal Observatory[281.D-5016] |
WOS关键词 | LUMINOUS OPTICAL TRANSIENT ; SN 2008S ; SODIUM-ABSORPTION ; RED TRANSIENT ; NGC 300 ; LINES ; DUST ; EVOLUTION ; NOVA ; ULTRAVIOLET |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | OXFORD UNIV PRESS |
WOS记录号 | WOS:001048625100014 |
资助机构 | Irish Research Council[GOIPG/2020/542] ; Royal Society - Science Foundation Ireland University Research Fellowship[BECAS/DOCTORADO NACIONAL 21202412] ; INAF ; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001] ; ESO Telescopes at the La Silla Paranal Observatory[281.D-5016] |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/26183] |
专题 | 云南天文台_丽江天文观测站(南方基地) |
通讯作者 | Byrne, R A |
作者单位 | 1.Dipartimento di Fisica e Astronomia ‘G. Galilei’, Università degli studi di Padova Vicolo dell’Osservatorio 3, I-35122 Padova, Italy 2.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, I-35122 Padova, Italy; 3.Millennium Institute of Astrophysics (MAS), Nuncio Monsenor Sòtero Sanz 100, Providencia, Santiago 8320000, Chile; 4.Instituto de Astrofìsica, Departamento de Ciencias Fisicas, Universidad Andres Bello, Fernandez Concha 700, Las Condes, Santiago 8320000, Chile; 5.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, P.R. China; 6.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, P.R. China; 7.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, P.R. China; 8.School of Physics, University College Dublin, Belfield, Dublin 4, D04 V1W8, Ireland; |
推荐引用方式 GB/T 7714 | Byrne, R A,Fraser, M,Cai YZ,et al. Time-varying Na i D absorption in ILRTs as a probe of circumstellar material[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2023,524(2):2978-2993. |
APA | Byrne, R A,Fraser, M,Cai YZ,Reguitti, A,&Valerin, G.(2023).Time-varying Na i D absorption in ILRTs as a probe of circumstellar material.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,524(2),2978-2993. |
MLA | Byrne, R A,et al."Time-varying Na i D absorption in ILRTs as a probe of circumstellar material".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 524.2(2023):2978-2993. |
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