Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-06-23
Astrophys.J. 584 (2003) 390-398
Astronomy and Astrophysics
Astrophysics
Illustrative figures and expanded discussion of derivations added. Accepted for publication in ApJ
Scientific paper
10.1086/345536
We show that the collapsar model of gamma-ray bursts results in a series of successive shocks and rarefaction waves propagating in the "cork" of stellar material being pushed ahead of the jet, as it emerges from the massive stellar progenitor. These shocks result in a series of characteristic, increasingly shorter and harder thermal X-ray pulses, as well as a non-thermal gamma-ray pulse, which precede the usual non-thermal MeV gamma-rays. We consider jets escaping from both compact (CO or He dwarf) and blue supergiant stellar progenitors. The period, fluence and hardness of the pulses serves as a diagnostic for the size and density of the outer envelope of the progenitor star.
Meszaros Peter
Waxman Eli
No associations
LandOfFree
Collapsar Uncorking and Jet Eruption in GRB does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Collapsar Uncorking and Jet Eruption in GRB, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collapsar Uncorking and Jet Eruption in GRB will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-231964