NAOC Open IR
SN 2018hti: a nearby superluminous supernova discovered in a metal-poor galaxy
Lin, W. L.1; Wang, X. F.1,2; Li, W. X.1; Zhang, J. J.3,4,5; Mo, J.1; Sai, H. N.1; Zhang, X. H.1; Filippenko, A., V6,7; Zheng, W. K.6; Brink, T. G.6; Baron, E.8; DerKacy, J. M.8; Ehgamberdiev, S. A.9; Mirzaqulov, D.9; Li, X.1; Zhang, J. C.1; Yan, S. Y.1; Xi, G. B.1; Hsiao, Y.1; Zhang, T. M.10,11; Wang, L. J.12; Liu, L. D.13; Xiang, D. F.1; Wu, C. Y.1; Rui, L. M.1; Chen, Z. H.1
2020-09-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume497Issue:1Pages:318-335
AbstractSN 2018hti is a Type I superluminous supernova (SLSN I) with an absolute g-band magnitude of -22.2 at maximum brightness, discovered by the Asteroid Terrestrial-impact Last Alert System in a metal-poor galaxy at a redshift of 0.0612. We present extensive photometric and spectroscopic observations of this supernova, covering the phases from similar to-35 d to more than +340 d from the r-band maximum. Combining our BVgri-band photometry with Swift UVOT optical/ultraviolet photometry, we calculated the peak luminosity as similar to 3.5 x 10(44) erg s(-1). Modelling the observed light curve reveals that the luminosity evolution of SN 2018hti can be produced by an ejecta mass of 5.8 M-circle dot and a magnetar with a magnetic field of B = 1.8 x 10(13) G having an initial spin period of P-0 = 1.8 ms. Based on such a magnetar-powered scenario and a larger sample, a correlation between the spin of the magnetar and the kinetic energy of the ejecta can be inferred for most SLSNe I, suggesting a self-consistent scenario. Like for other SLSNe I, the host galaxy of SN 2018hti is found to be relatively faint (M-g = -17.75 mag) and of low metallicity (Z = 0.3 Z(circle dot)), with a star formation rate of 0.3 M-circle dot yr(-1). According to simulation results of single-star evolution, SN 2018hti could originate from a massive, metal-poor star with a zero-age main sequence (ZAMS) mass of 25-40 M-circle dot, or from a less massive rotating star with M-ZAMS approximate to 16-25 M-circle dot. For the case of a binary system, its progenitor could also be a star with M-ZAMS greater than or similar to 25 M-circle dot.
Keywordsupernovae: general supernovae: individual (SN 2018hti)
Funding OrganizationChinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; People's Government of Yunnan Province ; W. M. Keck Foundation ; W. M. Keck Foundation ; NationalNatural Science Foundation of China (NSFC) ; NationalNatural Science Foundation of China (NSFC) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Key Research Program of the CAS ; Key Research Program of the CAS ; Youth Innovation Promotion Association of the CAS ; Youth Innovation Promotion Association of the CAS ; CAS `Light ofWest China' Program ; CAS `Light ofWest China' Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Program on Key Research and Development Project of China ; National Program on Key Research and Development Project of China ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; TABASGO Foundation ; TABASGO Foundation ; Christopher R. Redlich Fund ; Christopher R. Redlich Fund ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; People's Government of Yunnan Province ; W. M. Keck Foundation ; W. M. Keck Foundation ; NationalNatural Science Foundation of China (NSFC) ; NationalNatural Science Foundation of China (NSFC) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Key Research Program of the CAS ; Key Research Program of the CAS ; Youth Innovation Promotion Association of the CAS ; Youth Innovation Promotion Association of the CAS ; CAS `Light ofWest China' Program ; CAS `Light ofWest China' Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Program on Key Research and Development Project of China ; National Program on Key Research and Development Project of China ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; TABASGO Foundation ; TABASGO Foundation ; Christopher R. Redlich Fund ; Christopher R. Redlich Fund ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; People's Government of Yunnan Province ; W. M. Keck Foundation ; W. M. Keck Foundation ; NationalNatural Science Foundation of China (NSFC) ; NationalNatural Science Foundation of China (NSFC) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Key Research Program of the CAS ; Key Research Program of the CAS ; Youth Innovation Promotion Association of the CAS ; Youth Innovation Promotion Association of the CAS ; CAS `Light ofWest China' Program ; CAS `Light ofWest China' Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Program on Key Research and Development Project of China ; National Program on Key Research and Development Project of China ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; TABASGO Foundation ; TABASGO Foundation ; Christopher R. Redlich Fund ; Christopher R. Redlich Fund ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; People's Government of Yunnan Province ; W. M. Keck Foundation ; W. M. Keck Foundation ; NationalNatural Science Foundation of China (NSFC) ; NationalNatural Science Foundation of China (NSFC) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Key Research Program of the CAS ; Key Research Program of the CAS ; Youth Innovation Promotion Association of the CAS ; Youth Innovation Promotion Association of the CAS ; CAS `Light ofWest China' Program ; CAS `Light ofWest China' Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Program on Key Research and Development Project of China ; National Program on Key Research and Development Project of China ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; TABASGO Foundation ; TABASGO Foundation ; Christopher R. Redlich Fund ; Christopher R. Redlich Fund ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Miller Institute for Basic Research in Science (U.C. Berkeley)
DOI10.1093/mnras/staa1918
WOS KeywordLIGHT CURVES ; COLLAPSE ; SPECTROSCOPY ; PROGENITORS ; EVOLUTION ; SYSTEM ; SAMPLE ; STARS ; MASS
Language英语
Funding ProjectChinese Academy of Sciences ; People's Government of Yunnan Province ; W. M. Keck Foundation ; NationalNatural Science Foundation of China (NSFC)[11633002] ; NationalNatural Science Foundation of China (NSFC)[11761141001] ; NationalNatural Science Foundation of China (NSFC)[11325313] ; National Program on Key Research and Development Project[2016YFA0400803] ; NSFC[11773067] ; NSFC[11403096] ; NSFC[11203034] ; Key Research Program of the CAS[KJZD-EW-M06] ; Youth Innovation Promotion Association of the CAS[2018081] ; CAS `Light ofWest China' Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Program on Key Research and Development Project of China[2016YFA0400801] ; National Postdoctoral Program for Innovative Talents[BX20190044] ; China Postdoctoral Science Foundation[2019M660515] ; TABASGO Foundation ; Christopher R. Redlich Fund ; Miller Institute for Basic Research in Science (U.C. Berkeley)
Funding OrganizationChinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; People's Government of Yunnan Province ; W. M. Keck Foundation ; W. M. Keck Foundation ; NationalNatural Science Foundation of China (NSFC) ; NationalNatural Science Foundation of China (NSFC) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Key Research Program of the CAS ; Key Research Program of the CAS ; Youth Innovation Promotion Association of the CAS ; Youth Innovation Promotion Association of the CAS ; CAS `Light ofWest China' Program ; CAS `Light ofWest China' Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Program on Key Research and Development Project of China ; National Program on Key Research and Development Project of China ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; TABASGO Foundation ; TABASGO Foundation ; Christopher R. Redlich Fund ; Christopher R. Redlich Fund ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; People's Government of Yunnan Province ; W. M. Keck Foundation ; W. M. Keck Foundation ; NationalNatural Science Foundation of China (NSFC) ; NationalNatural Science Foundation of China (NSFC) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Key Research Program of the CAS ; Key Research Program of the CAS ; Youth Innovation Promotion Association of the CAS ; Youth Innovation Promotion Association of the CAS ; CAS `Light ofWest China' Program ; CAS `Light ofWest China' Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Program on Key Research and Development Project of China ; National Program on Key Research and Development Project of China ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; TABASGO Foundation ; TABASGO Foundation ; Christopher R. Redlich Fund ; Christopher R. Redlich Fund ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; People's Government of Yunnan Province ; W. M. Keck Foundation ; W. M. Keck Foundation ; NationalNatural Science Foundation of China (NSFC) ; NationalNatural Science Foundation of China (NSFC) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Key Research Program of the CAS ; Key Research Program of the CAS ; Youth Innovation Promotion Association of the CAS ; Youth Innovation Promotion Association of the CAS ; CAS `Light ofWest China' Program ; CAS `Light ofWest China' Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Program on Key Research and Development Project of China ; National Program on Key Research and Development Project of China ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; TABASGO Foundation ; TABASGO Foundation ; Christopher R. Redlich Fund ; Christopher R. Redlich Fund ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; People's Government of Yunnan Province ; W. M. Keck Foundation ; W. M. Keck Foundation ; NationalNatural Science Foundation of China (NSFC) ; NationalNatural Science Foundation of China (NSFC) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Key Research Program of the CAS ; Key Research Program of the CAS ; Youth Innovation Promotion Association of the CAS ; Youth Innovation Promotion Association of the CAS ; CAS `Light ofWest China' Program ; CAS `Light ofWest China' Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Program on Key Research and Development Project of China ; National Program on Key Research and Development Project of China ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; TABASGO Foundation ; TABASGO Foundation ; Christopher R. Redlich Fund ; Christopher R. Redlich Fund ; Miller Institute for Basic Research in Science (U.C. Berkeley) ; Miller Institute for Basic Research in Science (U.C. Berkeley)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000574919600023
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/81774
Collection中国科学院国家天文台
Corresponding AuthorLin, W. L.; Wang, X. F.
Affiliation1.Tsinghua Univ, Phys Dept & Tsinghua Ctr Astrophys THCA, Beijing 100084, Peoples R China
2.Beijing Acad Sci & Technol, Beijing Planetarium, Beijing 100044, Peoples R China
3.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China
4.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Yunnan, Peoples R China
5.Chinese Acad Sci, Ctr Astron Mega Sci, 20A Datun Rd, Beijing 100012, Peoples R China
6.Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA
7.Univ Calif Berkeley, Miller Inst Basic Res Sci, Berkeley, CA 94720 USA
8.Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA
9.Uzbek Acad Sci, Ulugh Beg Astron Inst, Tashkent 100052, Uzbekistan
10.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 10101, Peoples R China
11.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 101408, Peoples R China
12.Chinese Acad Sci, Inst High Energy Phys, Astroparticle Phys, Beijing 100049, Peoples R China
13.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
Recommended Citation
GB/T 7714
Lin, W. L.,Wang, X. F.,Li, W. X.,et al. SN 2018hti: a nearby superluminous supernova discovered in a metal-poor galaxy[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,497(1):318-335.
APA Lin, W. L..,Wang, X. F..,Li, W. X..,Zhang, J. J..,Mo, J..,...&Chen, Z. H..(2020).SN 2018hti: a nearby superluminous supernova discovered in a metal-poor galaxy.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,497(1),318-335.
MLA Lin, W. L.,et al."SN 2018hti: a nearby superluminous supernova discovered in a metal-poor galaxy".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 497.1(2020):318-335.
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