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THE LIGHT CURVE OF THE MACRONOVA ASSOCIATED WITH THE LONG-SHORT BURST GRB 060614
Jin, Zhi-Ping1; Li, Xiang1,2; Cano, Zach3; Covino, Stefano4; Fan, Yi-Zhong1; Wei, Da-Ming1
2015-10-01
Source PublicationAstrophysical Journal Letters
Volume811Issue:2Pages:L22-L22
AbstractThe 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)).
KeywordBinaries: General Gamma-ray Burst: Individual (Grb 060614) Radiation Mechanisms: Thermal Stars: Neutron
Subject Area天体物理学
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/2041-8205/811/2/L22
WOS KeywordGAMMA-RAY BURST ; NEUTRON-STAR MERGERS ; R-PROCESS ; GRB-060614 ; 130603B ; NUCLEOSYNTHESIS ; PROGENITORS ; AFTERGLOWS ; TRANSIENTS ; SUPERNOVAE
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000364478600008
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/15175
Collection暗物质和空间天文实验室
Affiliation1.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
Recommended Citation
GB/T 7714
Jin, Zhi-Ping,Li, Xiang,Cano, Zach,et al. THE LIGHT CURVE OF THE MACRONOVA ASSOCIATED WITH THE LONG-SHORT BURST GRB 060614[J]. Astrophysical Journal Letters,2015,811(2):L22-L22.
APA Jin, Zhi-Ping,Li, Xiang,Cano, Zach,Covino, Stefano,Fan, Yi-Zhong,&Wei, Da-Ming.(2015).THE LIGHT CURVE OF THE MACRONOVA ASSOCIATED WITH THE LONG-SHORT BURST GRB 060614.Astrophysical Journal Letters,811(2),L22-L22.
MLA Jin, Zhi-Ping,et al."THE LIGHT CURVE OF THE MACRONOVA ASSOCIATED WITH THE LONG-SHORT BURST GRB 060614".Astrophysical Journal Letters 811.2(2015):L22-L22.
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