The edge of a gamma-ray burst afterglow

P. Mészáros, M. J. Rees

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


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 languageEnglish (US)
Pages (from-to)L10-L14
JournalMonthly Notices of the Royal Astronomical Society
Issue number1
StatePublished - Sep 1 1998

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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