GRBs in the SWIFT and Fermi era: a new view of the prompt emission

F. Massaro; J. E. Grindlay

doi:10.1063/1.3621741

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arXiv · 1102.1011

GRBs in the SWIFT and Fermi era: a new view of the prompt emission

F. Massaro·J. E. Grindlay

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Abstract

Gamma Ray Bursts (GRBs) show evidence of different light curves, duration, afterglows, host galaxies and they explode within a wide redshift range. However, their spectral energy distributions (SEDs) appear to be very similar showing a curved shape. In 1993 Band et al. proposed a phenomenological description of the integrated spectral shape for the GRB prompt emission, the so called Band function. We present an alternative scenario to explain the curved shape of GRB SEDs: the log-parabolic model.

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F. Massaro, J. E. Grindlay. 2011-02-04. GRBs in the SWIFT and Fermi era: a new view of the prompt emission. https://doi.org/10.1063/1.3621741

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