Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-12-12
Nuovo Cim.B121:1177-1182,2006
Astronomy and Astrophysics
Astrophysics
To be published in the proceedings of the conference "SWIFT and GRBs: Unveiling the Relativistic Universe", Venice, June 5-9,
Scientific paper
10.1393/ncb/i2007-10234-9
It is now generally accepted that long gamma-ray bursts are associated with the final evolutionary stages of massive stars. As a consequence, their jets must propagate through the stellar progenitor and break out on their surface, before they can reach the photospheric radius and produce the gamma-ray photons. We investigate the role of the progenitor star in shaping the jet properties. We show that even a jet powered by a steady engine can develop a rich phenomenology at the stellar surface. We present special-relativistic simulations and compare the results to analytic considerations. We show that the jet is complex in the time as well as in the angular domain, so that observers located along different lines of sight detect significantly different bursts.
Begelman Mitchell C.
Lazzati Davide
Morsony Brian J.
No associations
LandOfFree
The physics of GRB jets and their interaction with the progenitor star 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 The physics of GRB jets and their interaction with the progenitor star, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The physics of GRB jets and their interaction with the progenitor star will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-117333