| SN 2015bf: A fast declining type II supernova with flash-ionized signatures | |
Lin, Han1; Wang, Xiaofeng1,2; Zhang JJ(张居甲)3,4,5 ; Lin, Weili1; Mo, Jun1; Filippenko, Alexei V6,7; Zheng, WeiKang6; Brown, Peter J8; Xiang, Danfeng1; Huang, Fang9; Cai, Yongzhi1; Zhang, Tianmeng10; Li, Xue1; Rui, Liming1; Zhang, Xinghan1; Sai, Hanna1; Zhao, Xulin11; Graham, Melissa L12; Shivvers, I6; Halevi, G6; Yuk, H13; Brink, Thomas G6
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| 发表期刊 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 2021-06-29 | |
| 卷号 | 505期号:4页码:4890-4905 |
| DOI | 10.1093/mnras/stab1550 |
| 产权排序 | 第3完成单位 |
| 收录类别 | SCI ; EI |
| 关键词 | stars: evolution supernovae: general supernovae: individual: (SN 2015bf) |
| 摘要 | We present optical and ultraviolet photometry, as well as optical spectra, for the type II supernova (SN) 2015bf. Our observations cover the phases from similar to 2 to similar to 200 d after explosion. The first spectrum is characterized by a blue continuum with a blackbody temperature of similar to 24 000 K and flash-ionized emission lines. After about 1 week, the spectra of SN 2015bf evolve like those of a regular SN II. From the luminosity of the narrow emission component of H alpha, we deduce that the mass-loss rate is larger than similar to 3.7 x 10(-3) M-circle dot yr(-1). The disappearance of the flash features in the first week after explosion indicates that the circumstellar material is confined within similar to 6 x 10(14) cm. Thus, we suggest that the progenitor of SN 2015bf experienced violent mass loss shortly before the supernova explosion. The multiband light curves show that SN 2015bf has a high peak luminosity with an absolute visual magnitude M-V = -18.11 +/- 0.08 mag and a fast post-peak decline with a V-band decay of 1.22 +/- 0.09 mag within similar to 50 d after maximum light. Moreover, the R-band tail luminosity of SN 2015bf is fainter than that of SNe II with similar peak by 1-2 mag, suggesting a small amount of Ni-56 (similar to 0.009 M-circle dot) synthesized during the explosion. Such a low nickel mass indicates that the progenitor of SN 2015bf could be a super-asymptotic-giant-branch star that collapsed owing to electron capture. |
| 资助项目 | National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[11633002] ; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[12033002] ; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[11761141001] ; National Program on Key Research and Development Project[2016YFA0400803] ; scholar Program of Beijing Academy of Science and Technology[DZ: BS202002] ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences[XDB23040100] ; NSFCNational Natural Science Foundation of China (NSFC)[11773067] ; Youth Innovation Promotion Association of the CAS[2018081] ; Ten Thousand Talents Program of Yunna for Top-notch Youth Talents ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of SciencesChinese Academy of Sciences ; Peoples Government of Yunnan Province ; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation[2021M691821] ; W. M. Keck FoundationW.M. Keck Foundation ; NASA's Astrophysics Data Analysis Program[NNX13AF35G] ; TABASGO Foundation ; Christopher R. Redlich Fund ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Lick Observatory |
| 项目资助者 | National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[11633002, 12033002, 11761141001] ; National Program on Key Research and Development Project[2016YFA0400803] ; scholar Program of Beijing Academy of Science and Technology[DZ: BS202002] ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences[XDB23040100] ; NSFCNational Natural Science Foundation of China (NSFC)[11773067] ; Youth Innovation Promotion Association of the CAS[2018081] ; Ten Thousand Talents Program of Yunna for Top-notch Youth Talents ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of SciencesChinese Academy of Sciences ; Peoples Government of Yunnan Province ; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation[2021M691821] ; W. M. Keck FoundationW.M. Keck Foundation ; NASA's Astrophysics Data Analysis Program[NNX13AF35G] ; TABASGO Foundation ; Christopher R. Redlich Fund ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Lick Observatory |
| 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 | Article |
| 出版者 | OXFORD UNIV PRESS |
| 出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
| ISSN | 0035-8711 |
| URL | 查看原文 |
| WOS记录号 | WOS:000767870400006 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | LIGHT-CURVES ; CIRCUMSTELLAR-MATERIAL ; MASS-LOSS ; PHOTOMETRY ; SPECTROSCOPY ; PROGENITOR ; TELESCOPE ; PROGRAM ; 1999EM ; SEARCH |
| EI入藏号 | 20221712020658 |
| EI主题词 | Supernovae |
| EI分类号 | 657.2 Extraterrestrial Physics and Stellar Phenomena - 802.2 Chemical Reactions |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/24580 |
| 专题 | 南方基地 中国科学院天体结构与演化重点实验室 |
| 通讯作者 | Wang, Xiaofeng |
| 作者单位 | 1.Physics Department and Tsinghua Center for Astrophysics (THCA), Tsinghua University, Beijing 100084, China; 2.Beijing Planetarium, Beijing Academy of Sciences and Technology, Beijing 100044, China; 3.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China; 4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China; 5.Center for Astronomical Mega-Science (CAS), 20A Datun Road, Chaoyang District, Beijing 100012, China; 6.Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA; 7.Miller Senior Fellow, Miller Institute for Basic Research in Science, University of California, Berkeley, CA 94720-3411, USA; 8.George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University; Department of Physics and Astronomy, 4242, TAMU, College Station, TX 77843, USA; 9.Department of Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China; 10.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China; 11.School of Science, Tianjin University of Technology, Tianjin 300384, China; 12.DiRAC Institute, Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, USA; 13.Homer L. Dodge Department of Physics and Astronomy, The University of Oklahoma, 440 W. Brooks St., Norman, OK 73019, USA |
| 推荐引用方式 GB/T 7714 | Lin, Han,Wang, Xiaofeng,Zhang JJ,et al. SN 2015bf: A fast declining type II supernova with flash-ionized signatures[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,505(4):4890-4905. |
| APA | Lin, Han.,Wang, Xiaofeng.,Zhang JJ.,Lin, Weili.,Mo, Jun.,...&Brink, Thomas G.(2021).SN 2015bf: A fast declining type II supernova with flash-ionized signatures.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,505(4),4890-4905. |
| MLA | Lin, Han,et al."SN 2015bf: A fast declining type II supernova with flash-ionized signatures".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 505.4(2021):4890-4905. |
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