中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 南极天文中心  > 期刊论文
题名: A UNIFIED ENERGY-RESERVOIR MODEL CONTAINING CONTRIBUTIONS FROM Ni-56 AND NEUTRON STARS AND ITS IMPLICATION FOR LUMINOUS TYPE Ic SUPERNOVAE
作者: Wang, S. Q.1, 2; Wang, L. J.1, 2; Dai, Z. G.1, 2; Wu, X. F.3, 4, 5
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2015-07-10
卷号: 807, 期号:2, 页码:147
关键词: stars: magnetars ; supernovae: general ; supernovae: individual (SN 2010ay, SN 2006nx, SN 14475)
学科分类: 天文和天体物理
DOI: 10.1088/0004-637X/807/2/147
文章类型: Article
英文摘要: Most 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.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: GAMMA-RAY BURSTS ; CORE-COLLAPSE SUPERNOVAE ; TIME LIGHT CURVES ; SUPERLUMINOUS SUPERNOVAE ; II SUPERNOVAE ; HOST GALAXY ; MILLISECOND PULSARS ; MAGNETIC-FIELDS ; IA SUPERNOVAE ; EXPLOSION
收录类别: SCI
所属项目名称: PMO_LIB-IR
语种: 英语
WOS记录号: WOS:000358967000033
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/14879
Appears in Collections:南极天文中心_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
2015038.pdf(1083KB)----限制开放View 联系获取全文

作者单位: 1.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
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Wang, S. Q.]'s Articles
[Wang, L. J.]'s Articles
[Dai, Z. G.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Wang, S. Q.]‘s Articles
[Wang, L. J.]‘s Articles
[Dai, Z. G.]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 2015038.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院紫金山天文台 - Feedback
Powered by CSpace