Hyperstars - Main Origin of Short Gamma Ray Bursts?

Details Hyperstars - Main Origin of Short Gamma Ray Bursts? Hyperstars - Main Origin of Short Gamma Ray Bursts?

2005-09-09

arxiv.org/abs/astro-ph/0509257v1

Chin.J.Astron.Astrophys.6:323,2006

Astronomy and Astrophysics

Astrophysics

Invited talk to be published in the proceedings of the intl. Workshop `High Energy Cosmic Sources' May 23-28, 2005, Vulcano, I

Scientific paper

10.1088/1009-9271/6/S1/41

The first well-localized short-duration gamma ray bursts (GRBs), GRB 050509b, GRB 050709 and GRB 050724, could have been the narrowly beamed initial spike of a burst/hyper flare of soft gamma ray repeaters (SGRs) in host galaxies at cosmological distances. Such bursts are expected if SGRs are young hyperstars, i.e. neutron stars where a considerable fraction of their neutrons have converted to hyperons and/or strange quark matter.

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