Computer Science
Scientific paper
Dec 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995stin...9890874b&link_type=abstract
Technical Report, INFN-TH-95-01; DE97-724139 Lab. Nazionali del Gran Sasso
Computer Science
Gamma Ray Bursts, Supernovae, Magnetic Fields, Red Giant Stars, White Dwarf Stars, Explosions, Particle Acceleration, Shock Waves, Weak Interactions (Field Theory)
Scientific paper
A new mechanism is proposed for high energy gamma ray burst in Supernova type 1 (SNI) explosion. Presupernova is assumed to be a binary system comprised of a red giant and a white dwarf with a wind accretion. The accretion flow terminates by the accretion shock in the vicinity of the white dwarf at the distance of the order of the accretion radius. The gas inside the accretion radius constitutes the main body of a target for gamma ray production. The supernova explosion and the shock propagation in the white dwarf result in the hydrodynamical acceleration of the outer layers of the star. It proceeds in two stages. The first stage is caused by the shock propagation in the outer layers of the star; the second stage is connected with the adiabatic expansion of the ejected shell into low-density medium around the white dwarf. The spectrum of accelerated particles is steep and the maximum energy does not exceed 1000 GeV.
Berezinsky Veniamin S.
Blasi Pasquale
Hnatyk B. I.
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