期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 316, 期 4, 页码 L45-L49出版社
BLACKWELL SCIENCE LTD
DOI: 10.1046/j.1365-8711.2000.03821.x
关键词
radiation mechanisms : non-thermal; gamma-rays : bursts; X-rays : general
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 parametrizing 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 arising from interactions with the softer ambient photons. The resulting spectrum is peaked at energies that are 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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