Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976ap%26ss..42...43i&link_type=abstract
(COSPAR, Symposium on Fast Transients in X- and Gamma-Rays, Varna, Bulgaria, May 29-31, 1975.) Astrophysics and Space Science, v
Astronomy and Astrophysics
Astronomy
2
Cosmic X Rays, Gamma Rays, Spaceborne Astronomy, X Ray Astronomy, X Ray Spectroscopy, Polar Orbits, Radiant Flux Density, Radiation Counters
Scientific paper
An analysis has been made of the narrow intensity spikes occurring in two cosmic gamma-ray bursts which were observed with a fast time resolution germanium spectrometer on board the low altitude polar orbiting satellite 1972-076B. The bursts on 18 December 1972 and 21 July 1973, were also recorded on the Vela satellite system. The durations of three spikes were observed to be about 0.06 s with the limits being 0.03 to 0.10 s. Four other narrow spikes were measured to have time width limits between 0.001 and 0.10 s. An additional eight spikes had widths less than 0.9 s. During the spikes, the gamma-ray intensities increased by factors of about 2 to 10, with a median value of about 3. These and other characteristics of the fast time structure are presented.
Imhof William L.
Nakano George H.
Reagan J. B.
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