Origin of GRB afterglows in the model of galactic neutron stars

Free access article

Issue		Astron. Astrophys. Suppl. Ser. Volume 138, Number 3, September 1999 Gamma-Ray Bursts in the Afterglow Era Contents Rome, November 3-6, 1998


Page(s)		551 - 552
DOI		http://dx.doi.org/10.1051/aas:1999348

DOI: 10.1051/aas:1999348

Astron. Astrophys. Suppl. Ser. 138, 551-552

Origin of GRB afterglows in the model of galactic neutron stars

G.S. Bisnovatyi-Kogan

Send offprint request: G.S. Bisnovatyi-Kogan

Space Research Institute, 84/32, Profsoyuznaya st., Moscow, Russia
e-mail: gkogan@mx.iki.rssi.ru

Received December 29, 1998; accepted June 3, 1999

Abstract:

The launch of the Beppo-Sax satellite gave a unique opportunity to investigate gamma ray bursts (GRB) in different spectral regions. The large diversity of the afterglow behavior creates additional problems for the cosmological model with a fireball. Formation of the afterglow giving the observed diversity of properties is suggested in the Galactic neutron star model of GRBs. It is based on the transient accretion disc formation around the neutron star with a low-mass brown companion irradiated by the neutron star.

Key words: gamma-ray: bursts

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