A new type of long gamma-ray burst

被引：77

作者：

King, Andrew ^{[1
]}

Olsson, Emma

Davies, Melvyn B.

机构：

[1] Univ Leicester, Theoret Astrophys Grp, Leicester LE1 7RH, Leics, England

[2] Lund Observ, SE-22100 Lund, Sweden

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2007年 / 374卷 / 01期

关键词：

gamma-rays; bursts;

D O I：

10.1111/j.1745-3933.2006.00259.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider gamma-ray bursts (GRBs) produced by the merger of a massive white dwarf with a neutron star. We show that these are likely to produce long-duration GRBs, in some cases definitely without an accompanying supernova, as observed recently. This class of burst would have a strong correlation with star formation, and occur close to the host galaxy. However, rare members of the class need not be near star-forming regions, and could have any type of host galaxy. Thus a long-duration burst far from any star-forming region would also be a signature of this class. Estimates based on the existence of a known progenitor suggest that our proposed class may be an important contributor to the observed GRB rate.

引用

页码：L34 / L36

页数：3

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