Delayed X-Ray Afterglows from Obscured Gamma-Ray Bursts in Star-Forming Regions

Details Delayed X-Ray Afterglows from Obscured Gamma-Ray Bursts in Star-Forming Regions Delayed X-Ray Afterglows from Obscured Gamma-Ray Bursts in Star-Forming Regions

2000-07-18

arxiv.org/abs/astro-ph/0007255v1

Astrophys.J. 543 (2000) L35-L37

Astronomy and Astrophysics

Astrophysics

6 pages, aas latex, 1 figure, subm. to ApJ(Lett) 7/18/2000

Scientific paper

10.1086/318175

For Gamma-Ray Bursts occurring in dense star-forming regions, the X-ray afterglow behavior minutes to days after the trigger may be dominated by the small-angle scattering of the prompt X-ray emission off dust grains. We give a simple illustrative model for the X-ray light curves at different X-ray energies, and discuss possible implications. A bump followed by a steeper decay in soft X-rays is predicted for bursts which are heavily obscured in the optical.

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