Short GRBs: Opening Angles, Local Neutron Star Merger Rate, and Off-axis Events for GRB/GW Association
Short GRBs: Opening Angles, Local Neutron Star Merger Rate, and Off-axis Events for GRB/GW Association
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短伽玛暴:伽马射线暴/引力波关联的张角、局域中子星合并率和离轴事件
DOI:
10.3847/1538-4357/aab76d
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发表时间:
2017-08
影响因子:
4.9
通讯作者:
Wei Da-Ming
中科院分区:
文献类型:
--
作者:
Jin Zhi-Ping;Li Xiang;Wang Hao;Wang Yuan-Zhu;He Hao-Ning;Yuan Qiang;Zhang Fu-Wen;Zou Yuan-Chuan;Fan Yi-Zhong;Wei Da-Ming
The jet breaks in the afterglow light curves of short gamma-ray bursts (SGRBs), rarely detected so far, are crucial for estimating the half-opening angles of the ejecta (θ j) and hence the neutron star merger rate. In this work, we report the detection of jet decline behaviors in GRB 150424A and GRB 160821B, and find θ j∼ 0.1 rad. Together with five events reported before 2015 and three others" identified" recently (GRB 050709, GRB 060614, and GRB 140903A), we have a sample consisting of nine SGRBs and one long-short GRB with reasonably estimated θ j. In particular, three Swift bursts in the sample have redshifts z≤ 0.2, with which we estimate the local neutron star merger rate density to be
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DOI:
10.1063/1.1579370
发表时间:
2003-05
期刊:
--
影响因子:
--
作者:
E. Rossi;D. Lazzati;M. Rees
通讯作者:
E. Rossi;D. Lazzati;M. Rees
影响因子:
16.6
作者:
Yang, Bin;Jin, Zhi-Ping;Li, Xiang;Covino, Stefano;Zheng, Xian-Zhong;Hotokezaka, Kenta;Fan, Yi-Zhong;Piran, Tsvi;Wei, Da-Ming
通讯作者:
Wei, Da-Ming
DOI:
10.1088/0004-637x/776/1/18
发表时间:
2013-07
期刊:
The Astrophysical Journal
影响因子:
--
作者:
W. Fong;E. Berger
通讯作者:
W. Fong;E. Berger
DOI:
10.1086/187083
发表时间:
1993-05
期刊:
The Astrophysical Journal
影响因子:
--
作者:
C. Kochanek;T. Piran
通讯作者:
C. Kochanek;T. Piran
影响因子:
2
作者:
R. MacKay
通讯作者:
R. MacKay