Supernova Explosions with Close Massive Companion: SN 1998bw/GRB 980425

Details Supernova Explosions with Close Massive Companion: SN 1998bw/GRB 980425 Supernova Explosions with Close Massive Companion: SN 1998bw/GRB 980425

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999icrc....4....1p&link_type=abstract

Proceedings of the 26th International Cosmic Ray Conference. August 17-25, 1999. Salt Lake City, Utah, USA. Under the auspices o

Physics

Scientific paper

Some gamma ray bursts may be produced by supernovae exploding in close massive binary systems (type Ib/c supernovae) as suggested by the recent observation of SN 1998bw/GRB 980425. We propose that high energy radiation observed in such gamma ray bursts may be produced by synchrotron radiation of electrons accelerated by 1st order Fermi acceleration at a quasi-stationary shock in the high velocity SN ejecta colliding with the companion star or some other nearby massive object. Nuclei would also be accelerated, and could give rise to an observable fluence of high energy neutrinos at Earth.

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