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题名: THE LIGHT CURVE OF THE MACRONOVA ASSOCIATED WITH THE LONG-SHORT BURST GRB 060614
作者: Jin ZhiPing(金志平)1; Li, Xiang1, 2; Cano, Zach3; Covino, Stefano4; Fan YiZhong(范一中)1; Wei DaMing(韦大明)1
刊名: Astrophysical Journal Letters
出版日期: 2015-10-01
卷号: 811, 期号:2, 页码:L22-L22
关键词: binaries: general ; gamma-ray burst: individual (GRB 060614) ; radiation mechanisms: thermal ; stars: neutron
学科分类: 天体物理学
DOI: 10.1088/2041-8205/811/2/L22
文章类型: Article
英文摘要: The Swift-detected GRB 060614 was a unique burst that straddles an imaginary divide between long- and short-duration gamma-ray bursts (GRBs), and its physical origin has been heavily debated over the years. Recently, a distinct, very soft F814W-band excess at t similar to 13.6 days after the burst was identified in a joint-analysis of VLT and Hubble Space Telescope optical afterglow data of GRB 060614, which has been interpreted as evidence for an accompanying macronova (also called a kilonova). Under the assumption that the afterglow data in the time interval of 1.7-3.0 days after the burst are due to external FS emission, when this assumption is extrapolated to later times it is found that there is an excess of flux in several multi-band photometric observations. This component emerges at similar to 4 days after the burst, and it may represent the first time that a multi-epoch/band light curve of a macronova has been obtained. The macronova associated with GRB 060614 peaked at t less than or similar to 4 days after the burst, which is significantly earlier than that observed for a supernova associated with a long-duration GRB. Due to the limited data, no strong evidence for a temperature evolution is found. We derive a conservative estimate of the macronova rate of similar to 16.3(8.2)(+16.3) Gpc(-3) yr(-1), implying a promising prospect for detecting the gravitational wave radiation from compact-object mergers by upcoming Advanced LIGO/VIRGO/KAGRA detectors (i.e., the rate is R-GW similar to 0.5(-0.25)(+0.5)(D/200 Mpc)3 yr(-1)).
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 BURST ; NEUTRON-STAR MERGERS ; R-PROCESS ; GRB-060614 ; 130603B ; NUCLEOSYNTHESIS ; PROGENITORS ; AFTERGLOWS ; TRANSIENTS ; SUPERNOVAE
收录类别: SCI
项目资助者: National Basic Research Program of China(2013CB837000 ; NSFC(11361140349 ; Foundation for Distinguished Young Scholars of Jiangsu Province, China(BK2012047) ; Strategic Priority Research Program(XDB09000000) ; Icelandic Research Fund ; ASI(I/004/11/0) ; 2014CB845800) ; 11103084 ; 11273063 ; 11433009 ; U1231101)
语种: 英语
WOS记录号: WOS:000364478600008
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15175
Appears in Collections:暗物质和空间天文实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Iceland, Inst Sci, Ctr Astrophys & Cosmol, IS-107 Reykjavik, Iceland
4.INAF Brera Astron Observ, I-23807 Merate, LC, Italy
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