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A possible macronova in the late afterglow of the long-short burst GRB 060614
Yang, Bin1,2; Jin, Zhi-Ping1; Li, Xiang1,2; Covino, Stefano3; Zheng, Xian-Zhong1; Hotokezaka, Kenta4; Fan, Yi-Zhong1,5; Piran, Tsvi4; Wei, Da-Ming1
2015-06-01
Source PublicationNATURE COMMUNICATIONS
Volume6Pages:7323
AbstractLong-duration (> 2 s) gamma-ray bursts that are believed to originate from the death of massive stars are expected to be accompanied by supernovae. GRB 060614, that lasted 102 s, lacks a supernova-like emission down to very stringent limits and its physical origin is still debated. Here we report the discovery of near-infrared bump that is significantly above the regular decaying afterglow. This red bump is inconsistent with even the weakest known supernova. However, it can arise from a Li-Paczynski macronova-the radioactive decay of debris following a compact binary merger. If this interpretation is correct, GRB 060614 arose from a compact binary merger rather than from the death of a massive star and it was a site of a significant production of heavy r-process elements. The significant ejected mass favours a black hole-neutron star merger but a double neutron star merger cannot be ruled out.
Subject Area天文和天体物理
WOS HeadingsScience & Technology
DOI10.1038/ncomms8323
WOS KeywordGAMMA-RAY BURST ; NEUTRON-STAR MERGERS ; RADIOACTIVELY POWERED TRANSIENTS ; COMPACT OBJECT MERGERS ; R-PROCESS ; DYNAMICAL EJECTA ; BINARY MERGERS ; LIGHT CURVES ; GRB-060614 ; SUPERNOVA
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000357172100006
Citation statistics
Cited Times:119[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/14854
Collection宇宙伽马暴、中子星及相关物理研究团组
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.INAF, Brera Astron Observ, I-23807 Merate, Italy
4.Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel
5.Nanjing Univ, Collaborat Innovat Ctr Modern Astron & Space Expl, Nanjing 210046, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Yang, Bin,Jin, Zhi-Ping,Li, Xiang,et al. A possible macronova in the late afterglow of the long-short burst GRB 060614[J]. NATURE COMMUNICATIONS,2015,6:7323.
APA Yang, Bin.,Jin, Zhi-Ping.,Li, Xiang.,Covino, Stefano.,Zheng, Xian-Zhong.,...&Wei, Da-Ming.(2015).A possible macronova in the late afterglow of the long-short burst GRB 060614.NATURE COMMUNICATIONS,6,7323.
MLA Yang, Bin,et al."A possible macronova in the late afterglow of the long-short burst GRB 060614".NATURE COMMUNICATIONS 6(2015):7323.
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