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Evidence for Magnetar Formation in Broad-lined Type Ic Supernovae 1998bw and 2002ap
Wang, L. J.1; Yu, H.2,3; Liu, L. D.2,3; Wang, S. Q.2,3,4; Han, Y. H.1; Xu, D.1; Dai, Z. G.2,3; Qiu, Y. L.1; Wei, J. Y.1
2017-03-10
Source PublicationASTROPHYSICAL JOURNAL
Volume837Issue:2
AbstractBroad-lined type Ic supernovae (SNe Ic-BL) are peculiar stellar explosions that are distinct from ordinary SNe. Some SNe Ic-BL are associated with long-duration (greater than or similar to 2 s) gamma-ray bursts (GRBs). Black holes and magnetars are two types of compact objects that are hypothesized to be central engines of GRBs. In spite of decades of investigations, no direct evidence for the formation of black holes or magnetars has yet been found for GRBs. Here we report the finding that the early peak (t less than or similar to 50 days) and late-time (t greater than or similar to 300 days) slow decay displayed in the light curves of SNe 1998bw (associated with GRB 980425) and 2002ap (not GRB-associated) can be attributed to magnetar spin-down with an initial rotation period P-0 similar to 20 ms, while the intermediate-time (50 less than or similar to t less than or similar to 300 days) exponential decline is caused by the radioactive decay of Ni-56. The connection between the early peak and late-time slow decline in the light curves is unexpected in alternative models. We thus suggest that GRB 980425 and SN 2002ap were powered by magnetars.
SubtypeArticle
KeywordStars: Neutron Supernovae: General Supernovae: Individual (Sne 1998bw 2002ap)
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational Basic Research Program ("973" Program) of China(2014CB845800) ; National Basic Research Program ("973" Program) of China(2014CB845800) ; National Natural Science Foundation of China(U1331202 ; National Natural Science Foundation of China(U1331202 ; One-Hundred-Talent Program of the National Astronomical Observatories, Chinese Academy of Sciences ; One-Hundred-Talent Program of the National Astronomical Observatories, Chinese Academy of Sciences ; 11533033 ; 11533033 ; U1331101 ; U1331101 ; 11573014 ; 11573014 ; 11422325 ; 11422325 ; 11373022) ; 11373022) ; National Basic Research Program ("973" Program) of China(2014CB845800) ; National Basic Research Program ("973" Program) of China(2014CB845800) ; National Natural Science Foundation of China(U1331202 ; National Natural Science Foundation of China(U1331202 ; One-Hundred-Talent Program of the National Astronomical Observatories, Chinese Academy of Sciences ; One-Hundred-Talent Program of the National Astronomical Observatories, Chinese Academy of Sciences ; 11533033 ; 11533033 ; U1331101 ; U1331101 ; 11573014 ; 11573014 ; 11422325 ; 11422325 ; 11373022) ; 11373022)
DOI10.3847/1538-4357/aa5ff5
WOS KeywordCORE-COLLAPSE SUPERNOVAE ; GAMMA-RAY BURSTS ; STRIPPED-ENVELOPE SUPERNOVAE ; PULSAR-WIND NEBULAE ; MERGER MILLISECOND MAGNETARS ; REVERSE SHOCK EMISSION ; COOLED ACCRETION DISKS ; INFRARED LIGHT CURVES ; HYPERNOVA SN 1998BW ; X-RAY
Indexed BySCI
Language英语
Funding OrganizationNational Basic Research Program ("973" Program) of China(2014CB845800) ; National Basic Research Program ("973" Program) of China(2014CB845800) ; National Natural Science Foundation of China(U1331202 ; National Natural Science Foundation of China(U1331202 ; One-Hundred-Talent Program of the National Astronomical Observatories, Chinese Academy of Sciences ; One-Hundred-Talent Program of the National Astronomical Observatories, Chinese Academy of Sciences ; 11533033 ; 11533033 ; U1331101 ; U1331101 ; 11573014 ; 11573014 ; 11422325 ; 11422325 ; 11373022) ; 11373022) ; National Basic Research Program ("973" Program) of China(2014CB845800) ; National Basic Research Program ("973" Program) of China(2014CB845800) ; National Natural Science Foundation of China(U1331202 ; National Natural Science Foundation of China(U1331202 ; One-Hundred-Talent Program of the National Astronomical Observatories, Chinese Academy of Sciences ; One-Hundred-Talent Program of the National Astronomical Observatories, Chinese Academy of Sciences ; 11533033 ; 11533033 ; U1331101 ; U1331101 ; 11573014 ; 11573014 ; 11422325 ; 11422325 ; 11373022) ; 11373022)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000397570100005
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8256
Collection光学天文研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Key Lab Space Astron & Technol, Beijing 100012, Peoples R China
2.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China
3.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Jiangsu, Peoples R China
4.Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA
Recommended Citation
GB/T 7714
Wang, L. J.,Yu, H.,Liu, L. D.,et al. Evidence for Magnetar Formation in Broad-lined Type Ic Supernovae 1998bw and 2002ap[J]. ASTROPHYSICAL JOURNAL,2017,837(2).
APA Wang, L. J..,Yu, H..,Liu, L. D..,Wang, S. Q..,Han, Y. H..,...&Wei, J. Y..(2017).Evidence for Magnetar Formation in Broad-lined Type Ic Supernovae 1998bw and 2002ap.ASTROPHYSICAL JOURNAL,837(2).
MLA Wang, L. J.,et al."Evidence for Magnetar Formation in Broad-lined Type Ic Supernovae 1998bw and 2002ap".ASTROPHYSICAL JOURNAL 837.2(2017).
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