Astron. Astrophys. Suppl. Ser.
Volume 138, Number 3, September 1999Gamma-Ray Bursts in the Afterglow Era Contents Rome, November 3-6, 1998
|Page(s)||509 - 510|
|Published online||15 September 1999|
A possible connection between gamma–ray bursts and single black holes
Special Astrophysical Observatory, Russia
2 University of Galway, Ireland
3 Dipartimento di Astronomia, Università di Bologna, via Zamboni 33, I-40126 Bologna, Italy
4 Istituto Te.S.R.E., CNR, Bologna, Italy
Accepted: 1 July 1999
We consider Single Black Holes (SBHs) of as possible parent objects for cosmological GRBs. The latter are the result of the energy release of SBHs magnetosphere inhomogeneities. The percolation nature of this release yields a unique power law for the GRBs energy distribution that is (with ), i.e. the same observed in solar flares, flare stars and X–ray sources. The number of GRBs per year per galaxy is about with total energy ergs for beaming factor of about .
Key words: black hole physics, gamma-rays: bursts
© European Southern Observatory (ESO), 1999