GRB 021004 modelled by multiple energy injections

Details GRB 021004 modelled by multiple energy injections GRB 021004 modelled by multiple energy injections

2005-06-22

arxiv.org/abs/astro-ph/0506544v1

Astron.Astrophys. 443 (2005) 841-849

Astronomy and Astrophysics

Astrophysics

9 pages, 5 figures, accepted for publication in A&Ax

Scientific paper

10.1051/0004-6361:20052898

GRB 021004 is one of the best sampled gamma-ray bursts (GRB) to date, although the nature of its light curve is still being debated. Here we present a large amount (107) of new optical, near-infrared (NIR) and millimetre observations, ranging from 2 hours to more than a year after the burst. Fitting the multiband data to a model based on multiple energy injections suggests that at least 7 refreshed shocks took place during the evolution of the afterglow, implying a total energy release (collimated within an angle of 1.8 deg) of ~ 8x10^51 erg. Analysis of the late photometry reveals that the GRB 021004 host is a low extinction (Av ~ 0.1) starburst galaxy with M_B ~ -22.0.

Affiliated with

Also associated with

No associations

Rating

GRB 021004 modelled by multiple energy injections 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 GRB 021004 modelled by multiple energy injections, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GRB 021004 modelled by multiple energy injections will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-481215