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The Role of Dust in GRB Afterglows

By D Q Lamb

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

Topics: Astrophysics and Astronomy
Year: 2001
OAI identifier: oai:cds.cern.ch:512207
Provided by: CERN Document Server

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