The nature of absorption features in the spectra of gamma-ray bursts

Details The nature of absorption features in the spectra of gamma-ray bursts The nature of absorption features in the spectra of gamma-ray bursts

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...213..107b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 213, no. 1-2, April 1989, p. 107-113.

Astronomy and Astrophysics

Astrophysics

7

Absorption Spectra, Gamma Ray Bursts, Neutron Stars, Nuclear Fission, Stellar Spectra, Photoabsorption, Stellar Magnetic Fields, Stellar Mass Ejection, X Ray Spectra

Scientific paper

The nature of the observed absorption features in the spectra of gamma-ray bursts of energy epsilon = 30-60 keV is discussed. It is supposed that their formation is connected with photoabsorption near the K-threshold of heavy elements (e.g. Ba, I) thrown out after a nuclear explosion as a result of the fission of superheavy nuclei. An attempt is made to show that the absorption features must be blueshifted (Delta epsilon/epsilon of about u/c = 0.1-0.3), because of the matter expelled from the neutron star.

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