Compton dragged gamma-ray bursts: the spectrum

Details Compton dragged gamma-ray bursts: the spectrum Compton dragged gamma-ray bursts: the spectrum

2000-02-02

arxiv.org/abs/astro-ph/0002049v2

Mon.Not.Roy.Astron.Soc. 316 (2000) L45

Astronomy and Astrophysics

Astrophysics

5 pages, 3 figures, accepted for publication in MNRAS, pink pages

Scientific paper

10.1046/j.1365-8711.2000.03821.x

We calculate the spectrum resulting from the interaction of a fireball with ambient soft photons. These photons are assumed to be produced by the walls of a funnel in a massive star. By parameterizing the radial dependence of the funnel temperature we calculate the deceleration of the fireball self-consistently, taking into account the absorption of high energy gamma-rays due to interaction with the softer ambient photons. The resulting spectrum is peaked at energies in agreement with observations, has a nu^2 slope in the X-ray band and a steep power-law high energy tail.

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