Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-01-27
Astrophys.J.650:998-1003,2006
Astronomy and Astrophysics
Astrophysics
13 pages, 2 figures. 1 figure added, minor changes, ApJ accepted
Scientific paper
10.1086/507261
Recent discovery of the afterglow emission from short gamma-ray bursts suggests that binary neutron star or black hole-neutron star binary mergers are the likely progenitors of these short bursts. The accretion of neutron star material and its subsequent ejection by the central engine implies a neutron-rich outflow. We consider here a neutron-rich relativistic jet model of short bursts, and investigate the high energy neutrino and photon emission as neutrons and protons decouple from each other. We find that upcoming neutrino telescopes are unlikley to detect the 50 GeV neutrinos expected in this model. For bursts at z~0.1, we find that GLAST and ground-based Cherenkov telescopes should be able to detect prompt 100 MeV and 100 GeV photon signatures, respectively, which may help test the neutron star merger progenitor identification.
Meszaros Peter
Razzaque Soebur
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