Evolution of a Peculiar Type Ibn Supernova SN 2019wep | |
Gangopadhyay, Anjasha1,15; Misra, Kuntal1; Hosseinzadeh, Griffin14; Arcavi, Iair12,13; Pellegrino, Craig10,11; Wang, Xiaofeng8,9; Howell, D. Andrew10,11; Burke, Jamison10,11; Zhang JJ(张居甲)6,7; Kawabata, Koji15 | |
刊名 | ASTROPHYSICAL JOURNAL |
2022-05-01 | |
卷号 | 930期号:2 |
ISSN号 | 0004-637X |
DOI | 10.3847/1538-4357/ac6187 |
产权排序 | 第10完成单位 |
文献子类 | Article |
英文摘要 | We present a high-cadence short term photometric and spectroscopic monitoring campaign of a type Ibn SN 2019wep, which is one of the rare SN Ibn after SNe 2010al and 2019uo to display signatures of flash ionization (He ii, C iii, N iii). We compare the decline rates and rise time of SN 2019wep with other SNe Ibn and fast transients. The post-peak decline in all bands (0.1 mag day(-1)) are consistent with SNe Ibn but less than the fast transients. On the other hand, the Delta m (15) values are slightly lower than the average values for SNe Ibn but consistent with the fast transients. The rise time is typically shorter than SNe Ibn but longer than fast transients. SN 2019wep lies at the fainter end of SNe Ibn but possesses an average luminosity among the fast transients sample. The peculiar color evolution places it between SNe Ib and the most extreme SNe Ibn. The bolometric light-curve modeling shows resemblance with SN 2019uo with ejecta masses consistent with SNe Ib. SN 2019wep belongs to the P cygni subclass of SNe Ibn and shows faster evolution in line velocities as compared to the emission subclass. The post-maximum spectra show close resemblance with ASASSN-15ed hinting it to be of SN Ib nature. The low He i CSM velocities and residual H alpha further justifies it and provide evidence of an intermittent progenitor between Wolf-Rayet and LBV stars. |
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 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
资助项目 | Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; NSF[AST-1313404] ; NSF[AST-1911151] ; NSF[AST-1911225] ; National Science Foundation of China (NSFC)[12033003] ; National Science Foundation of China (NSFC)[11633002] ; National Science Foundation of China (NSFC)[11761141001] ; Major State Basic Research Development Program[2016YFA0400803] ; Scholar Program of Beijing Academy of Science and Technology[DZ:BS202002] ; BRICS grant[DST/IMRCD/BRICS/Pilotcall/ProFCheap/2017(G)] ; DST/JSPS[DST/INT/JSPS/P/281/2018] ; European Research Council (ERC) under the European Union[852097] ; Israel Science Foundation[2752/19] ; United States-Israel Binational Science Foundation (BSF) ; Israeli Council for Higher Education Alon Fellowship ; NSFC[12173082] ; NSFC[11773067] ; Youth Innovation Promotion Association of the CAS[2018081] ; Ten Thousand Talents Program of Yunnan for Top-notch Young Talents |
WOS关键词 | RICH CIRCUMSTELLAR MEDIUM ; RAPIDLY EVOLVING TRANSIENTS ; BOLOMETRIC LIGHT CURVES ; CORE-COLLAPSE ; EMISSION-LINES ; II SUPERNOVA ; PROGENITOR ; EXPLOSION ; SPECTRA ; STAR |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:000793496100001 |
资助机构 | Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; NSF[AST-1313404, AST-1911151, AST-1911225] ; National Science Foundation of China (NSFC)[12033003, 11633002, 11761141001] ; Major State Basic Research Development Program[2016YFA0400803] ; Scholar Program of Beijing Academy of Science and Technology[DZ:BS202002] ; BRICS grant[DST/IMRCD/BRICS/Pilotcall/ProFCheap/2017(G)] ; DST/JSPS[DST/INT/JSPS/P/281/2018] ; European Research Council (ERC) under the European Union[852097] ; Israel Science Foundation[2752/19] ; United States-Israel Binational Science Foundation (BSF) ; Israeli Council for Higher Education Alon Fellowship ; NSFC[12173082, 11773067] ; Youth Innovation Promotion Association of the CAS[2018081] ; Ten Thousand Talents Program of Yunnan for Top-notch Young Talents |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25156] |
专题 | 云南天文台_丽江天文观测站(南方基地) |
通讯作者 | Gangopadhyay, Anjasha |
作者单位 | 1.Aryabhatta Research Institute of Observational Sciences, Manora Peak, Nainital 263 002 India; 2.Center for Astrophysics Harvard & Smithsonian, Cambridge, Massachusetts, USA 3.Millennium Institute of Astrophysics, Nuncio Monsenor Sótero Sanz 100, Providencia, Santiago, 8320000 Chile; 4.Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea; 5.Indian Institute of Astrophysics, 2nd Block, 100 Feet Road, Koramangala, Bengaluru, Karnataka, 560034 India; 6.Key Laboratory for the Structure and Evolution of Celestial Objects,CAS, Kunming 650216, People's Republic of China; 7.Yunnan Astronomical Observatory of China, Chinese Academy of Sciences, Kunming, 650216, People's Republic of China; 8.Beijing Planetarium, Beijing Academy of Sciences, Beijing, 100044, People's Republic of China; 9.Physics Department and Tsinghua Center for Astrophysics, Tsinghua University, People's Republic of China; 10.Department of Physics, University of California, Santa Barbara, CA 93106-9530, USA; |
推荐引用方式 GB/T 7714 | Gangopadhyay, Anjasha,Misra, Kuntal,Hosseinzadeh, Griffin,et al. Evolution of a Peculiar Type Ibn Supernova SN 2019wep[J]. ASTROPHYSICAL JOURNAL,2022,930(2). |
APA | Gangopadhyay, Anjasha.,Misra, Kuntal.,Hosseinzadeh, Griffin.,Arcavi, Iair.,Pellegrino, Craig.,...&Xiang, Danfeng.(2022).Evolution of a Peculiar Type Ibn Supernova SN 2019wep.ASTROPHYSICAL JOURNAL,930(2). |
MLA | Gangopadhyay, Anjasha,et al."Evolution of a Peculiar Type Ibn Supernova SN 2019wep".ASTROPHYSICAL JOURNAL 930.2(2022). |
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