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 (pugliese, hfalcke, plbiermann@mpifr-bonn.mpg.de)

Astronomy & Astrophysics Letters (1999), Vol. 344, L37


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.

Please send an email request to hfalcke@mpifr-bonn.mpg.de for a preprint. The paper will be available in [(laa)LaTeX, PS] format.

Other publications can be found here.

Questions: Heino Falcke, hfalcke@mpifr-bonn.mpg.de