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A UNIFIED ENERGY-RESERVOIR MODEL CONTAINING CONTRIBUTIONS FROM Ni-56 AND NEUTRON STARS AND ITS IMPLICATION FOR LUMINOUS TYPE Ic SUPERNOVAE
Wang, S. Q.1,2; Wang, L. J.1,2; Dai, Z. G.1,2; Wu, X. F.3,4,5
2015-07-10
Source PublicationASTROPHYSICAL JOURNAL
Volume807Issue:2Pages:147
AbstractMost type Ic core-collapse supernovae produce Ni-56 and neutron stars (NSs) or black holes. The dipole radiation of nascent NSs has usually been neglected in explaining supernovae (SNe) with peak absolute magnitudes M-peak in any band greater than or similar to -19.5 mag, while the Ni-56 can be neglected in fitting most type Ic superluminous supernovae whose M-peak in any band is less than or similar to -21 mag, since the luminosity from a magnetar (highly magnetized NS) can outshine that from a moderate amount of Ni-56. For luminous SNe Ic with -21 less than or similar to M-peak less than or similar to -19.5 mag, however, both contributions from Ni-56 and NSs cannot be neglected without serious modeling since they are not SLSNe and the Ni-56 mass could be up to similar to 0.5 M-circle dot. In this paper we propose a unified model that contains contributions from both Ni-56 and a nascent NS. We select three luminous SNe Ic-broad-lined, SN 2010ay, SN 2006nx, and SN 14475, and show that, if these SNe are powered by Ni-56, the ratio of M-Ni to M-ej is unrealistic. Alternatively, we invoke the magnetar model and the hybrid (Ni-56 + NS) model and find that they can fit the observations, indicating that our models are valid and necessary for luminous SNe Ic. Owing to the lack of late-time photometric data, we cannot break the parameter degeneracy and thus distinguish among the model parameters, but we can expect that future multi-epoch observations of luminous SNe can provide stringent constraints on Ni-56 yields and the parameters of putative magnetars.
KeywordStars: Magnetars Supernovae: General Supernovae: Individual (Sn 2010ay, Sn 2006nx, Sn 14475)
Subject Area天文和天体物理
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-637X/807/2/147
WOS KeywordGAMMA-RAY BURSTS ; CORE-COLLAPSE SUPERNOVAE ; TIME LIGHT CURVES ; SUPERLUMINOUS SUPERNOVAE ; II SUPERNOVAE ; HOST GALAXY ; MILLISECOND PULSARS ; MAGNETIC-FIELDS ; IA SUPERNOVAE ; EXPLOSION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000358967000033
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/14879
Collection南极天文中心
Affiliation1.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China
2.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Jiangsu, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
4.Chinese Acad Sci, Chinese Ctr Antarct Astron, Nanjing 210008, Jiangsu, Peoples R China
5.Nanjing Univ, Purple Mt Observ, Chinese Acad Sci, Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Wang, S. Q.,Wang, L. J.,Dai, Z. G.,et al. A UNIFIED ENERGY-RESERVOIR MODEL CONTAINING CONTRIBUTIONS FROM Ni-56 AND NEUTRON STARS AND ITS IMPLICATION FOR LUMINOUS TYPE Ic SUPERNOVAE[J]. ASTROPHYSICAL JOURNAL,2015,807(2):147.
APA Wang, S. Q.,Wang, L. J.,Dai, Z. G.,&Wu, X. F..(2015).A UNIFIED ENERGY-RESERVOIR MODEL CONTAINING CONTRIBUTIONS FROM Ni-56 AND NEUTRON STARS AND ITS IMPLICATION FOR LUMINOUS TYPE Ic SUPERNOVAE.ASTROPHYSICAL JOURNAL,807(2),147.
MLA Wang, S. Q.,et al."A UNIFIED ENERGY-RESERVOIR MODEL CONTAINING CONTRIBUTIONS FROM Ni-56 AND NEUTRON STARS AND ITS IMPLICATION FOR LUMINOUS TYPE Ic SUPERNOVAE".ASTROPHYSICAL JOURNAL 807.2(2015):147.
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