The edge of a gamma-ray burst afterglow

P. Mészáros; M. J. Rees

doi:10.1046/j.1365-8711.1998.01992.x

The edge of a gamma-ray burst afterglow

P. Mészáros, M. J. Rees

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Abstract

We discuss the formation of spectral features in the decelerating ejecta of gamma-ray bursts, including the possible effect of inhomogeneities. These should lead to blueshifted and broadened absorption edges and resonant features, especially from H and He. An external neutral ISM could produce detectable H and He, as well as Fe X-ray absorption edges and lines. Hypernova scenarios may be diagnosed by Fe Ka and H Lyα emission lines.

Original language	English (US)
Pages (from-to)	L10-L14
Journal	Monthly Notices of the Royal Astronomical Society
Volume	299
Issue number	1
DOIs	https://doi.org/10.1046/j.1365-8711.1998.01992.x
State	Published - Sep 1 1998

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1046/j.1365-8711.1998.01992.x

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AB - We discuss the formation of spectral features in the decelerating ejecta of gamma-ray bursts, including the possible effect of inhomogeneities. These should lead to blueshifted and broadened absorption edges and resonant features, especially from H and He. An external neutral ISM could produce detectable H and He, as well as Fe X-ray absorption edges and lines. Hypernova scenarios may be diagnosed by Fe Ka and H Lyα emission lines.

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The edge of a gamma-ray burst afterglow

Abstract

All Science Journal Classification (ASJC) codes

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