Astronomy and Astrophysics – Astronomy
Scientific paper
May 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...121..232w&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 121, no. 2, May 1983, p. 232-236. Research supported by the Smithsonian Schola
Astronomy and Astrophysics
Astronomy
7
Astronomical Spectroscopy, Cerenkov Radiation, Gamma Ray Bursts, Pulsars, Data Processing, Gamma Ray Astronomy, Optical Reflection, Radiant Flux Density, Surges
Scientific paper
A variation of the atmospheric Cerenkov technique has been developed to search for very high energy gamma-ray transients from galactic sources. The Whipple Observatory 10 m optical reflector has been used to observe the previously established very high energy gamma-ray sources, Cygnus X-3 and PSR 0531. A total of 54 h on Cygnus X-3 and 20 h on PSR 0531 were accumulated: the data has been searched for transients of 4-24 min duration. Some evidence was found for the detection of two outbursts of eight minutes duration from the direction of Cygnus X-3; these would have corresponded to fluxes of 8 x 10 to the -10th photons/sq cm per sec of energy 4 x 10 to the 11th eV (approximately 25 pct of the cosmic ray background). There was no evidence for the detection of transients from PSR 0531.
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