Pugliese, Falcke, & Biermann 1999: Jet-disk symbiosis model for Gamma Ray Bursts.
A jet-disk symbiosis model for Gamma Ray Bursts: SS 433 the next?
Giovanna Pugliese, Heino Falcke, & Peter L. Biermann
Max-Planck-Institut für Radioastronomie, Auf den Hüugel 69, D-53121 Bonn, Germany
We consider a jet-disk symbiosis model to explain Gam\-ma Ray Bursts
and their afterglows. It is proposed that GRBs are created inside a
pre-existing jet from a neutron star which collapses to a black hole
due to massive accretion. In our model we assume that the initial
energy due to this transition is all deposited in the jet by magnetic
fields. The observed emission is then due to an ultrarelativistic
shock wave propagating along the jet. We show that a good agreement
between model predictions and observational data can be obtained for
systems with accretion rates as high as in the Galactic jet
source SS433. Specifically, we are able to reproduce the observed
afterglow emission as a function of time.
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