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arXiv · astro-ph/0610452

A new type of long gamma--ray burst

Andrew King·Emma Olsson·Melvyn B. Davies
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Abstract

We consider gamma--ray bursts 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.

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Andrew King, Emma Olsson, Melvyn B. Davies. 2006-10-16. A new type of long gamma--ray burst. https://doi.org/10.1111/j.1745-3933.2006.00259.x

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