Progenitors of GRB originated in the dense star cluster

Details Progenitors of GRB originated in the dense star cluster Progenitors of GRB originated in the dense star cluster

2001-02-09

arxiv.org/abs/astro-ph/0102161v1

Astronomy and Astrophysics

Astrophysics

Paper presented to the Second Roma Workshop on GRB in the afterglow era, October 2000

Scientific paper

10.1007/10853853_65

The evidences are given for the origin of the GRB progenitors from the ready stellar remnants in result of the dynamical interaction in the dense star clusters. In this way the close binaries of compact objects may form and then merge, often after ejecting from the parent cluster. The GRB may trigger star formation in the gaseous partiall sphere and occurence of the GRB afterglows near the star formation regions may be connected with the successive GRB origins in the same parent cluster. The observed distributions of GRB afterglows in Z and in distance to the galactic centers are compatible with the origin of many GRBs in the (present day classical) globular clusters, which were younger than 2 Gyr at the time of many GRBs events.

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