A search for TeV gamma rays from Cassiopeia gamma-1

Details A search for TeV gamma rays from Cassiopeia gamma-1 A search for TeV gamma rays from Cassiopeia gamma-1

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...262l..41r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 262, no. 2, p. L41-L43.

Astronomy and Astrophysics

Astronomy

3

B Stars, Binary Stars, Gamma Ray Astronomy, Stellar Physics, Gamma Ray Telescopes, Pulsars

Scientific paper

An analysis of 40 hours of data, collected at Gulmarg during 1987 and 1988, indicates absence of a significant dc or episodic periodic signal from 4U0115 + 63 (Cassiopeia gamma-1). We place an upper limit (at 99 percent confidence level) of 1.9 x 10 exp -11 photons/sq cm s on the flux of a steady signal from this X-ray binary pulsar at primary energies greater than 3 TeV. This is consistent with the negative results reported recently by the Whipple group for the period 1985-1988 but not with the detections claimed previously by Crimean and Durham groups.

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