What SWIFT has taught us about X-ray flashes and long-duration gamma-ray bursts

Details What SWIFT has taught us about X-ray flashes and long-duration gamma-ray bursts What SWIFT has taught us about X-ray flashes and long-duration gamma-ray bursts

2007-07-02

arxiv.org/abs/0707.0283v1

Astronomy and Astrophysics

Astrophysics

A talk at the 2007 Frascati Workshop, Vulcano, Italy. 12 pages total, 17 figures

Scientific paper

Recent data gathered and triggered by the SWIFT satellite have greatly improved our knowledge of long-duration gamma ray bursts (GRBs) and X-ray flashes (XRFs). This is particularly the case for the X-ray data at all times, and for UV and optical data at very early times. I show that the optical and X-ray observations are in excellent agreement with the predictions of the "cannonball" model of GRBs and XRFs. Elementary physics and just two mechanisms underlie these predictions: inverse Compton scattering and synchrotron radiation, generally dominant at early and late times, respectively. I put this result in its proper context and dedicate the paper to those who planed, built and operate SWIFT, a true flying jewel.

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