A peculiarly short-duration gamma-ray burst from massive star core collapse
A peculiarly short-duration gamma-ray burst from massive star core collapse
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大规模星核塌陷产生的持续时间特别短的伽马射线爆发
DOI:
10.1038/s41550-021-01395-z
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发表时间:
2021-05
期刊:
影响因子:
14.1
通讯作者:
Zhang B.
中科院分区:
文献类型:
--
作者:
Zhang B. -B.;Liu Z. -K.;Peng Z. -K.;Li Y.;Lu H. -J.;Yang J.;Yang Y. -S.;Yang Y. -H.;Meng Y. -Z.;Zou J. -H.;Ye H. -Y.;Wang X. -G.;Mao J. -R.;Zhao X. -H.;Bai J. -M.;Castro-Tirado A. J.;Hu Y. -D.;Dai Z. -G.;Liang E. -W.;Zhang B.
Gamma-ray bursts (GRBs) have been phenomenologically classified into long and short populations based on the observed bimodal distribution of duration. Multi-wavelength and multi-messenger observations in recent years have revealed that in general long GRBs originate from massive star core collapse events, whereas short GRBs originate from binary neutron star mergers. It has been known that the duration criterion is sometimes unreliable, and multi-wavelength criteria are needed to identify the physical origin of a particular GRB. Some apparently long GRBs have been suggested to have a neutron star merger origin, whereas some apparently short GRBs have been attributed to genuinely long GRBs whose short, bright emission is slightly above the detector’s sensitivity threshold. Here, we report the comprehensive analysis of the multi-wavelength data of the short, bright GRB 200826A. Characterized by a sharp pulse, this burst shows a duration of 1 second and no evidence of an underlying longer-duration event. Its other observational properties such as its spectral behaviours, total energy and host galaxy offset are, however, inconsistent with those of other short GRBs believed to originate from binary neutron star mergers. Rather, these properties resemble those of long GRBs. This burst confirms the existence of short-duration GRBs with stellar core-collapse origin, and presents some challenges to the existing models.
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DOI:
10.1088/0004-637x/784/1/83
发表时间:
2014-02
期刊:
The Astrophysical Journal
影响因子:
--
作者:
D. Dale;G. Helou;G. Magdis;L. Armus;T. Díaz-Santos;Yong Shi
通讯作者:
D. Dale;G. Helou;G. Magdis;L. Armus;T. Díaz-Santos;Yong Shi
影响因子:
4.9
作者:
Wei Jun-Jie;Wu Xue-Feng;Zhang Bin-Bin;Shao Lang;Meszaros Peter;Kostelecky V. Alan
通讯作者:
Kostelecky V. Alan
影响因子:
4.9
作者:
Lue, Hou-Jun;Zhang, Bing;Liang, En-Wei;Zhang, Bin-Bin
通讯作者:
Zhang, Bin-Bin
DOI:
10.1086/311622
发表时间:
1997-12
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
W. Kluźniak;M. Ruderman
通讯作者:
W. Kluźniak;M. Ruderman
影响因子:
2
作者:
R. MacKay
通讯作者:
R. MacKay