Superlong GRB 110328A: generation in the collapsing star cluster

Details Superlong GRB 110328A: generation in the collapsing star cluster Superlong GRB 110328A: generation in the collapsing star cluster

2011-04-17

arxiv.org/abs/1104.3290v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

6 pages

Scientific paper

We interpret the recently observed super-long cosmic gamma-ray burst GRB 110328A in the model of collapsing galactic nucleus. The neutron stars and stellar-mass black holes can form evolutionary a compact self-gravitating subsystem in galactic center. Merges of these star remnants during the avalanche contraction and collapse of the cluster can explain the bright peaks in the light-curve of GRB 110328A, while numerous smaller peaks and quasi-steady radiation can arise from the gravitational lensing and accretion of gas onto the forming supermassive black hole.

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