Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ap%26ss..82..261m&link_type=abstract
Astrophysics and Space Science, vol. 82, no. 2, Mar. 1982, p. 261-282.
Astronomy and Astrophysics
Astrophysics
63
Astronomical Spectroscopy, Cosmic Rays, Energy Spectra, Gamma Ray Bursts, High Temperature Plasmas, Plasma Radiation, Bremsstrahlung, Continuous Spectra, Cyclotron Radiation, Gamma Ray Spectrometers, Line Spectra, Neutron Stars, Radiation Absorption, Venera Satellites
Scientific paper
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.
Aptekar' R. L.
Golenetskii Sergey V.
Gurian Iu. A.
Il'inskii V. N.
Kharitonova T. V.
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