A New Model of Gamma Ray Bursts in Wind-Blown Bubbles

Details A New Model of Gamma Ray Bursts in Wind-Blown Bubbles A New Model of Gamma Ray Bursts in Wind-Blown Bubbles

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.8704k&link_type=abstract

American Astronomical Society Meeting 203, #87.04; Bulletin of the American Astronomical Society, Vol. 35, p.1347

Astronomy and Astrophysics

Astronomy

Scientific paper

We model gamma ray burst afterglows, assuming that the progenitor was a massive O type star surrounded by a high pressure HII region, which later became a luminous blue variable, and in turn became a Wolf-Rayet star with a surrounding bubble. We calculate the spectrum and corresponding light curves of synchrotron radiation from a relativistic shock that encounters this density structure. By varying the Wolf-Rayet timescale and wind velocity, we are able to adequately explain a host of GRB phenomena, including the preponderance of constant density GRBs with low densities and fast faders.

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