SN 2020wnt: a slow-evolving carbon-rich superluminous supernova with no O II lines and a bumpy light curve
文献类型:期刊论文
作者 | Gutiérrez, C P29,30; Pastorello, A28; Bersten, M25,26,27; Benetti, S28; Orellana, M23,24; Fiore, A21,22,28; Karamehmetoglu, E20; Kravtsov, T29; Reguitti, A18,19,28; Reynolds, T M16,17 |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
出版日期 | 2022-10-17 |
卷号 | 517期号:2页码:2056-2075 |
ISSN号 | 0035-8711 |
关键词 | supernovae: general supernovae: individual: SN 2020wnt |
DOI | 10.1093/mnras/stac2747 |
产权排序 | 第28完成单位 |
文献子类 | Article |
英文摘要 | We present the analysis of SN 2020wnt, an unusual hydrogen-poor superluminous supernova (SLSN-I), at a redshift of 0.032. The light curves of SN 2020wnt are characterized by an early bump lasting similar to 5 d, followed by a bright main peak. The SN reaches a peak absolute magnitude of M-r(max) = -20.52 +/- 0.03 mag at similar to 77.5 d from explosion. This magnitude is at the lower end of the luminosity distribution of SLSNe-I, but the rise-time is one of the longest reported to date. Unlike other SLSNe-I, the spectra of SN 2020wnt do not show O II, but strong lines of C II and Si II are detected. Spectroscopically, SN 2020wnt resembles the Type Ic SN 2007gr, but its evolution is significantly slower. Comparing the bolometric light curve to hydrodynamical models, we find that SN 2020wnt luminosity can be explained by radioactive powering. The progenitor of SN 2020wnt is likely a massive and extended star with a pre-SN mass of 80 M-circle dot and a pre-SN radius of 15 R-circle dot that experiences a very energetic explosion of 45 x 10(51) erg, producing 4 M-circle dot of Ni-56. In this framework, the first peak results from a post-shock cooling phase for an extended progenitor, and the luminous main peak is due to a large nickel production. These characteristics are compatible with the pair-instability SN scenario. We note, however, that a significant contribution of interaction with circumstellar material cannot be ruled out. |
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 |
WOS关键词 | MASS-METALLICITY RELATION ; CORE COLLAPSE SUPERNOVAE ; CIRCUMSTELLAR MEDIUM ; LUMINOUS SUPERNOVA ; INFRARED ECHOES ; NEBULAR SPECTRA ; IA SUPERNOVAE ; IC SUPERNOVAE ; HOST-GALAXY ; EMISSION |
资助项目 | UNRN[PI2020 40B885] ; ANID BECAS/DOCTORADO NACIONAL[21202412] ; Finnish Academy of Science and Letters ; MIUR, PRIN 2017[20179ZF5KS] ; Spanish MICINN[PID2019-108709GB-I00] ; FEDER funds ; program Unidad de Excelencia Maria de Maeztu[CEX2020-001058-M] ; Royal Society - Science Foundation Ireland University Research Fellowship ; Magnus Ehrnrooth Foundation ; Vilho, Yrjo and Kalle Vaisala Foundation ; National Aeronautics and Space Administration[80HQTR19D0030] ; National Science Foundation of China (NSFC)[12033003] ; National Science Foundation of China (NSFC)[11633002] ; Scholar Program of Beijing Academy of Science and Technology[DZ:BS202002] ; Tencent Xplorer Prize ; NSFC[12173082] ; NSFC[11773067] ; Youth Innovation Promotion Association of the CAS[2018081] ; Ten Thousand Talents Program of Yunnan for Top-notch Young Talents ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; National Natural Science Foundation of China (NSFC)[12033003] ; National Natural Science Foundation of China (NSFC)[11633002] ; National Natural Science Foundation of China (NSFC)[11325313] ; National Natural Science Foundation of China (NSFC)[11761141001] ; National Program on Key Research and Development Project[2016YFA0400803] ; China Manned Spaced Project[CMS-CSST-2021-A12] ; China Postdoctoral Science Foundation[2021M691821] ; UK Science and Technology Facilities Council ; NASA grants[NN12AR55G] ; NASA grants[80NSSC18K0284] ; NASA grants[80NSSC18K1575] ; Kepler/K2 grant[J1944/80NSSC19K0112] ; Kepler/K2 grant[HST GO-15889] ; STFC[ST/T000198/1] ; STFC[ST/S006109/1] ; Heising-Simons Foundation[12540303] ; [PICT-2020-SERIEA-01141] ; [PIP 112-202001-10034] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | OXFORD UNIV PRESS |
WOS记录号 | WOS:000869893200002 |
资助机构 | UNRN[PI2020 40B885] ; ANID BECAS/DOCTORADO NACIONAL[21202412] ; Finnish Academy of Science and Letters ; MIUR, PRIN 2017[20179ZF5KS] ; Spanish MICINN[PID2019-108709GB-I00] ; FEDER funds ; program Unidad de Excelencia Maria de Maeztu[CEX2020-001058-M] ; Royal Society - Science Foundation Ireland University Research Fellowship ; Magnus Ehrnrooth Foundation ; Vilho, Yrjo and Kalle Vaisala Foundation ; National Aeronautics and Space Administration[80HQTR19D0030] ; National Science Foundation of China (NSFC)[12033003, 11633002] ; Scholar Program of Beijing Academy of Science and Technology[DZ:BS202002] ; Tencent Xplorer Prize ; NSFC[12173082, 11773067] ; Youth Innovation Promotion Association of the CAS[2018081] ; Ten Thousand Talents Program of Yunnan for Top-notch Young Talents ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; National Natural Science Foundation of China (NSFC)[12033003, 11633002, 11325313, 11761141001] ; National Program on Key Research and Development Project[2016YFA0400803] ; China Manned Spaced Project[CMS-CSST-2021-A12] ; China Postdoctoral Science Foundation[2021M691821] ; UK Science and Technology Facilities Council ; NASA grants[NN12AR55G, 80NSSC18K0284, 80NSSC18K1575] ; Kepler/K2 grant[J1944/80NSSC19K0112, HST GO-15889] ; STFC[ST/T000198/1, ST/S006109/1] ; Heising-Simons Foundation[12540303] ; [PICT-2020-SERIEA-01141] ; [PIP 112-202001-10034] |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25607] |
专题 | 云南天文台_丽江天文观测站(南方基地) 云南天文台_中国科学院天体结构与演化重点实验室 |
通讯作者 | Gutiérrez, C P |
作者单位 | 1.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; 3.Beijing Planetarium, Beijing Academy of Science and Technology, Beijing 100044, China; 4.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 101408, China; 5.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China; 6.Turku Collegium for Science, Medicine and Technology, University of Turku, FI-20014 Turku, Finland; 7.Department of Physics, Florida State University, 77 Chieftan Way, Tallahassee, FL 32306, USA; 8.School of Physics, O’Brien Centre for Science North, University College Dublin, Belfield, Dublin 4, Dublin, Ireland; 9.Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans s/n, E-08193 Barcelona, Spain; 10.Physics Department and Tsinghua Center for Astrophysics (THCA), Tsinghua University, Beijing 100084, China; |
推荐引用方式 GB/T 7714 | Gutiérrez, C P,Pastorello, A,Bersten, M,et al. SN 2020wnt: a slow-evolving carbon-rich superluminous supernova with no O II lines and a bumpy light curve[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2022,517(2):2056-2075. |
APA | Gutiérrez, C P.,Pastorello, A.,Bersten, M.,Benetti, S.,Orellana, M.,...&Stritzinger, M D.(2022).SN 2020wnt: a slow-evolving carbon-rich superluminous supernova with no O II lines and a bumpy light curve.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,517(2),2056-2075. |
MLA | Gutiérrez, C P,et al."SN 2020wnt: a slow-evolving carbon-rich superluminous supernova with no O II lines and a bumpy light curve".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 517.2(2022):2056-2075. |
入库方式: OAI收割
来源:云南天文台
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