The role of dust in GRB afterglows

被引：0
|
作者：
Lamb, DQ [1 ]
机构：
[1] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA
来源：
GAMMA-RAY BURST AND AFTERGLOW ASTRONOMY 2001 | 2003年 / 662卷
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D O I：
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中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
We show that the clumpy structure of star-forming regions can naturally explain the fact that 50-70% of GRB afterglows are optically "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. We note that the detection of GRB "orphan" afterglows would provide strong evidence that the star-forming regions in which GRBs occur are clumpy.
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页码：415 / 416
页数：2
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