Line formation and variability in spectra of gamma-ray bursts

Details Line formation and variability in spectra of gamma-ray bursts Line formation and variability in spectra of gamma-ray bursts

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26as...97...65b&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 97, no. 1, p. 65-67.

Astronomy and Astrophysics

Astrophysics

1

Gamma Ray Bursts, Line Spectra, Neutron Stars, Variability, Absorption Spectra, Astronomical Spectroscopy

Scientific paper

The evolution of Gamma Ray Bursts (GRB) spectra of the events with soft absorption components show a surprising uniformity: spectra always evolve from a strong absorption to a fainter one, which finally may disappear at all. This behavior is difficult to interpret in a cyclotron model, but is naturally explained in a model of absorption in the expanding cloud, where heavy elements - products of nuclear fission - produce the observed absorption lines.

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