Hyperstars - Main Origin of Short Gamma Ray Bursts?

Abstract

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.

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

References in corpus (11)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• The Physics of Neutron Stars
• An exceptionally bright flare from SGR1806-20 and the origins of short-duration gamma-ray bursts
• Gamma-Ray Observations of a Giant Flare from The Magnetar SGR 1806-20
• The Fourth BATSE Gamma-Ray Burst Catalog (Revised)
• An expanding radio nebula produced by a giant flare from the magnetar SGR 1806-20
• Discovery of a Radio Source following the 27 December 2004 Giant Flare from SGR 1806-20
• A Relativistic Particle Outburst From The Soft Gamma-Ray Repeater SGR1900+14
• Towards a complete theory of Gamma Ray Bursts
• Giant flare of SGR 1806-20 from a relativistic jet
• Temporal properties of short and long gamma-ray bursts