Cosmic gamma-ray burst spectroscopy

A review is given of the gamma-ray burst energy spectrum measurements on Venera 11 and Venera 12 space probes. The gamma burst continuum approximates in shape thermal bremsstrahlung emission of a hot plasma. The radiation temperature varies over a broad range, 50-1000 keV, for different events. Spec...

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Bibliographic Details
Published in:Astrophysics and space science 1982-03, Vol.82 (2), p.261-282
Main Authors: Mazets, E. P., Golenetskii, S. V., Ilyinskii, V. N., Guryan, Yu. A., Aptekar, R. L., Panov, V. N., Sokolov, I. A., Sokolova, Z. Ya, Kharitonova, T. V.
Format: Article
Language:English
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Summary:A review is given of the gamma-ray burst energy spectrum measurements on Venera 11 and Venera 12 space probes. The gamma burst continuum approximates in shape thermal bremsstrahlung emission of a hot plasma. The radiation temperature varies over a broad range, 50-1000 keV, for different events. Spectra of many bursts contain cyclotron absorption and/or redshifted annihilation lines. Strong variability is typically observed in both continuum and line spectra. These spectral data provide convincing evidence for the gamma-ray bursts being generated by neutron stars with superstrong magnetic fields of nearly 1-10 trillion G.
ISSN:0004-640X
1572-946X
DOI:10.1007/BF00651438