Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.304...41h&link_type=abstract
Nature (ISSN 0028-0836), vol. 304, July 7, 1983, p. 41-43.
Astronomy and Astrophysics
Astronomy
11
Gamma Ray Bursts, Heao 2, Proportional Counters, X Ray Sources, Astronomical Models, Data Bases, Light Curve, Luminosity, Spaceborne Astronomy, Spatial Distribution
Scientific paper
Perhaps the most enigmatic and elusive of the short time scale astrophysical phenomena observed so far are the γ-ray bursts discovered in the Vela satellite data in 1973. After a decade of observational and theoretical work, there is still no agreement on a model for the radiation detected or for the type of astronomical system responsible. The authors have conducted a search of the Columbia Astrophysics Laboratory's Einstein imaging proportional counter data base for possible X-ray counterparts to these transient events. Four events with a pointlike spatial distribution were detected but their extremely soft spectra makes them unlikely candidates for γ-ray burst counterparts.
Helfand David J.
Vrtilek Saeqa D.
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