0000000000461641

AUTHOR

N. Lyons

showing 1 related works from this author

Different progenitors of short hard gamma-ray bursts

2007

We consider the spatial offsets of short hard gamma-ray bursts (SHBs) from their host galaxies. We show that all SHBs with extended duration soft emission components lie very close to their hosts. We suggest that NS-BH binary mergers offer a natural explanation for the properties of this extended duration/low offset group. SHBs with large offsets have no observed extended emission components and are less likely to have an optically detected afterglow, properties consistent with NS-NS binary mergers occurring in low density environments.

PhysicsAstrophysics::High Energy Astrophysical PhenomenaAstrophysics (astro-ph)Low offsetFOS: Physical sciencesBinary numberAstronomy and AstrophysicsAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsGalaxyAfterglowSpace and Planetary ScienceLow densityGamma-ray burstAstrophysics::Galaxy Astrophysics
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