Testing the blast wave model with Swift GRBs |
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Authors: | P.A. Curran R.L.C. Starling A.J. van der Horst R.A.M.J. Wijers M. de Pasquale M. Page |
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Affiliation: | 1. Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking RH5 6NT, UK;2. Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK;3. NASA Postdoctoral Program Fellow, NSSTC, 320 Sparkman Drive, Huntsville, AL 35805, USA;4. Astronomical Institute, University of Amsterdam, Kruislaan 403, 1098 SJ Amsterdam, The Netherlands |
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Abstract: | The complex structure of the light curves of Swift GRBs (e.g. superimposed flares and shallow decay) has made their interpretation and that of the blast wave caused by the burst, more difficult than in the pre-Swift era. We aim to constrain the blast wave parameters: electron energy distribution, p, density profile of the circumburst medium, k, and the continued energy injection index, q. We do so by comparing the observed multi-wavelength light curves and X-ray spectra of a Swift sample to the predictions of the blast wave model. |
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Keywords: | Gamma-rays bursts X-rays bursts Radiation mechanisms non-thermal |
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