Echo Emission From Dust Scattering and X-Ray Afterglows of Gamma-Ray Bursts

Details Echo Emission From Dust Scattering and X-Ray Afterglows of Gamma-Ray Bursts Echo Emission From Dust Scattering and X-Ray Afterglows of Gamma-Ray Bursts

2007-11-24

arxiv.org/abs/0711.3800v1

Astrophys.J.675:507-518,2008

Astronomy and Astrophysics

Astrophysics

25 pages, 3 figures, 2 tables. Accepted for publication in ApJ

Scientific paper

10.1086/527047

We investigate the effect of X-ray echo emission in gamma-ray bursts (GRBs). We find that the echo emission can provide an alternative way of understanding X-ray shallow decays and jet breaks. In particular, a shallow decay followed by a "normal" decay and a further rapid decay of X-ray afterglows can be together explained as being due to the echo from prompt X-ray emission scattered by dust grains in a massive wind bubble around a GRB progenitor. We also introduce an extra temporal break in the X-ray echo emission. By fitting the afterglow light curves, we can measure the locations of the massive wind bubbles, which will bring us closer to finding the mass loss rate, wind velocity, and the age of the progenitors prior to the GRB explosions.

Affiliated with

Also associated with

No associations

Rating

Echo Emission From Dust Scattering and X-Ray Afterglows of Gamma-Ray Bursts 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 Echo Emission From Dust Scattering and X-Ray Afterglows of Gamma-Ray Bursts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Echo Emission From Dust Scattering and X-Ray Afterglows of Gamma-Ray Bursts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-562732