Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...19111306m&link_type=abstract
American Astronomical Society, 191st AAS Meeting, #113.06; Bulletin of the American Astronomical Society, Vol. 29, p.1395
Astronomy and Astrophysics
Astronomy
Scientific paper
We report on general relativistic hydrodynamic studies which indicate several new physical processes which may contribute to powering gamma-ray bursts from neutron star binaries. Relativistically driven compression, heating, and collapse of the individual stars can occur many seconds before inspiral and merger. This compression may produce a neutrino burst of ~ 10(53) ergs lasting several seconds. The associated thermal neutrino emission produces an e(+-e^-) pair plasma by nu bar nu annihilation. We show first results of a simulated burst which produces ~ 10(51) erg in gamma -rays. We also discuss a preliminary study of the evolution of the magnetic field lines attached to the fluid as the stars orbit. We show that the relativistically driven fluid motion might lead to the formation of extremely strong magnetic fields ( ~ 10(17) gauss) in and around the stars which could affect to the formation and evolution of a gamma-ray burst.
Mathews Grant J.
Salmonson Jay
Wilson Richard J.
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