The rate of gravistar events
by
0M03
Dipartimento di Fisica "Ettore Pancini"
Abstract
The detection of the gravitational wave (GW) source GW150914 by the
advanced Laser Interferometer Gravitational Wave Observatory (aLIGO)
was interpreted as the merger of a binary black hole (BBH). A conventional
model of a binary black holes is supposed to consist of two black holes
of different masses which were born long ago before merger. A merger of
two black holes in vacuum is expected to have no electromagnetic radiation
in general. At the same time the Gamma-ray Burst Monitor (GBM) on board
the Fermi satellite reported the detection of a transient electromagnetic
signal. Recently, A.Loeb considered new model in which binary black
hole was created few minutes before coalescence. I consider the rate of
such GW events.