The Role of Dust in GRB Afterglows
Astrophysics
2009-11-07 v1
Abstract
We show that the clumpy structure of star-forming regions can naturally explain the fact that 50-70% of GRB afterglows are optical``dark.'' We also show that dust echos from the GRB and its afterglow, produced by the clumpy structure of the star-forming region in which the GRB occurs, can lead to temporal variability and peaks in the NIR, optical, and UV lightcurves of GRB afterglows.
Cite
@article{arxiv.astro-ph/0107551,
title = {The Role of Dust in GRB Afterglows},
author = {Donald Q. Lamb},
journal= {arXiv preprint arXiv:astro-ph/0107551},
year = {2009}
}
Comments
To appear in Procs. of Gamma-Ray Bursts in the Afterglow Era: 2nd Workshop, 3 pages, 2 figures, LaTeX