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SN 2016coi/ASASSN-16fp: an example of residual helium in a type Ic supernova?
Prentice, S. J.1; Ashall, C.1,2; Mazzali, P. A.1,3; Zhang JJ(张居甲)4,5,6; James, P. A.1; Wang, X. -F.7; Vinko, J.8,9,10; Percival, S.1; Short, L.1; Piascik, A.1; Huang, F.7; Mo, J.7; Rui, L. -M.7; Wang JG(王建国)4,5,6; Xiang, D. -F.7; Xin YX(辛玉新)4,5,6; Yi WM(易卫敏)4,5,6; Yu XG(余晓光)4,5,6; Zhai Q(翟倩)4,5,6; Zhang, T. -M.11; Hosseinzadeh, G.12,13; Howell, D. A.12,13; McCully, C.12,13; Valenti, S.14; Cseh, B.8; Hanyecz, O.8; Kriskovics, L.8; Pal, A.8; Sarneczky, K.8; Sodor, A.8; Szakats, R.8; Szekely, P.15; Varga-Verebelyi, E.8; Vida, K.8; Bradac, M.14; Reichart, D. E.16; Sand, D.17; Tartaglia, L.18
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2018-08-01
Volume478Issue:3Pages:4162-4192
DOI10.1093/mnras/sty1223
Contribution Rank第4完成单位
Indexed BySCI
KeywordSupernovae: Individual Sn2016coi/asassn16-fp
Abstract

The optical observations of Ic-4 supernova (SN) 2016coi/ASASSN-16fp, from similar to 2 to similar to 450 d after explosion, are presented along with analysis of its physical properties. The SN shows the broad lines associated with SNe Ic-3/4 but with a key difference. The early spectra display a strong absorption feature at similar to 5400 angstrom which is not seen in other SNe Ic-3/4 at this epoch. This feature has been attributed to He I in the literature. Spectral modelling of the SN in the early photospheric phase suggests the presence of residual He in a C/O dominated shell. However, the behaviour of the He I lines is unusual when compared with He-rich SNe, showing relatively low velocities and weakening rather than strengthening over time. The SN is found to rise to peak similar to 16 d after core-collapse reaching a bolometric luminosity of L-p similar to 3 x 10(42) erg s(-1). Spectral models, including the nebular epoch, show that the SN ejected 2.5-4M(circle dot) of material, with similar to 1.5M(circle dot) below 5000 km s(-1), and with a kinetic energy of (4.5-7) x 10(51) erg. The explosion synthesized similar to 0.14M(circle dot) of Ni-56. There are significant uncertainties in E(B - V)(host) and the distance, however, which will affect L-p and M-Ni. SN 2016coi exploded in a host similar to the Large Magellanic Cloud (LMC) and away from star-forming regions. The properties of the SN and the host-galaxy suggest that the progenitor had M-ZAMS of 23-28M(circle dot) and was stripped almost entirely down to its C/O core at explosion.

Funding ProjectScience and Technology Facilities Council (STFC) ; National Science Foundation (NSF)[AST-1613472] ; STFC ; NSF[1313484] ; NSF[AST-1412504] ; NSF[AST-1517649] ; Chinese Academy of Sciences (CAS) ; People's Government of Yunnan Province ; National Science Foundation of China (NSFC)[11403096] ; National Science Foundation of China (NSFC)[11773067] ; Youth Innovation Promotion Association of the CAS ; Western Light Youth Project ; Key Research Program of the CAS[KJZD-EW-M06]
Funding OrganizationScience and Technology Facilities Council (STFC) ; National Science Foundation (NSF)[AST-1613472] ; STFC ; NSF[1313484, AST-1412504, AST-1517649] ; Chinese Academy of Sciences (CAS) ; People's Government of Yunnan Province ; National Science Foundation of China (NSFC)[11403096, 11773067] ; Youth Innovation Promotion Association of the CAS ; Western Light Youth Project ; Key Research Program of the CAS[KJZD-EW-M06]
Language英语
Subject Area天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS IDWOS:000441282300093
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordStripped-envelope Supernovae ; Core-collapse Supernovae ; Nebular Spectra ; Iib Supernova ; Presupernova Evolution ; Photometric System ; Binary Companion ; Star-formation ; Light Curves ; Telescope
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/17889
Collection丽江天文观测站(南方基地)
中国科学院天体结构与演化重点实验室
Corresponding AuthorPrentice, S. J.; Ashall, C.
Affiliation1.Astrophysics Research Institute, Liverpool John Moores University, IC2, Liverpool Science Park, 146 Brownlow Hill, Liverpool L3 5RF, UK
2.Department of Physics, Florida State University, Tallahassee, FL 32306, USA
3.Max-Planck-Institut f¨ur Astrophysik, Karl-Schwarzschild-Str 1, D-85748 Garching, Germany
4.Yunnan Observatories (YNAO), Chinese Academy of Sciences, Kunming 650216, China
5.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
6.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, China
7.Physics Department and Tsinghua Center for Astrophysics (THCA), Tsinghua University, Beijing 100084, China
8.Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Budapest, Konkoly-Thege ´ut 15-17, 1121, Hungary
9.Department of Optics and Quantum Electronics, University of Szeged, D´om t´er 9, Szeged 6720, Hungary
10.Department of Astronomy, University of Texas at Austin, 2515 Speedway, Austin, TX 78712-1205, USA
11.National Astronomical Observatories of China (NAOC), Chinese Academy of Sciences, Beijing 100012, China
12.Las Cumbres Observatory, 6740 Cortona Dr. Suite 102, Goleta, CA 93117, USA
13.University of California, Santa Barbara, Department of Physics, Broida Hall, Santa Barbara, CA 93111, USA
14.Department of Physics, University of California, Davis, CA 95616, USA
15.Department of Experimental Physics, University of Szeged, D´omt´er 9, Szeged 6720, Hungary
16.University of North Carolina 269 Phillips Hall, CB #3255 Chapel Hill, NC 27599, USA
17.Department of Astronomy/Steward Observatory, 933 North Cherry Avenue, Room N204, Tucson, AZ 85721, USA
18.Department of Astronomy and The Oskar Klein Centre, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden.
Recommended Citation
GB/T 7714
Prentice, S. J.,Ashall, C.,Mazzali, P. A.,et al. SN 2016coi/ASASSN-16fp: an example of residual helium in a type Ic supernova?[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,478(3):4162-4192.
APA Prentice, S. J..,Ashall, C..,Mazzali, P. A..,Zhang JJ.,James, P. A..,...&Tartaglia, L..(2018).SN 2016coi/ASASSN-16fp: an example of residual helium in a type Ic supernova?.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,478(3),4162-4192.
MLA Prentice, S. J.,et al."SN 2016coi/ASASSN-16fp: an example of residual helium in a type Ic supernova?".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 478.3(2018):4162-4192.
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