On cosmic bursts in various spectral ranges

Details On cosmic bursts in various spectral ranges On cosmic bursts in various spectral ranges

Jun 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997azh....74..366r&link_type=abstract

Astronomicheskij Zhurnal, vol. 74, p. 366

Other

Gamma Ray Bursts, Ultraviolet Radiation, Spectral Bands, Energy Spectra, Cosmic Rays, Emission Spectra

Scientific paper

It is proposed that the absence of gamma-ray bursts at relatively low energies (5 keV or less) is associated with the difference in the energy spectra of the burst and background emission. Extrapolation of the burst spectra to lower energies (down to radio wavelengths) indicates that the background intensity dominates the burst intensity. This makes simultaneous observation of bursts at gamma-ray energies (5 keV and greater) and in softer spectral ranges difficult. An exception is the ultraviolet, where the cosmic background intensity should be extremely low. Observation of bursts in the ultraviolet could help establish the nature of gamma-ray bursts. Recording bursts in other energy ranges requires very high angular resolution.

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