Upper limits on TeV gamma-ray emission from Centaurus A, Vela X-1, Centaurus X-3, and Circinus X-1

Details Upper limits on TeV gamma-ray emission from Centaurus A, Vela X-1, Centaurus X-3, and Circinus X-1 Upper limits on TeV gamma-ray emission from Centaurus A, Vela X-1, Centaurus X-3, and Circinus X-1

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...405..554a&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 405, no. 2, p. 554-558.

Astronomy and Astrophysics

Astronomy

11

Active Galaxies, Gamma Ray Astronomy, Radiant Flux Density, X Ray Binaries, Luminosity, X Ray Sources

Scientific paper

The active galaxy Centaurus A and the X-ray binary systems Vela X-1, Centaurus X-3, and Circinus X-1 were monitored for VHE gamma-ray emission above 1 TeV with the JANZOS Cerenkov facility during 1988 and 1989. No evidence was found for persistent or episodic emission from any of these objects. Subsequent upper limits on the integral fluxes of 2.2 x 10 exp -11, 2.8 x 10 exp -11, 4.0 x 10 exp -11, and 4.2 x 10 exp -11/sq cm/s, respectively, were obtained for these objects. These limits are consistent with results of observations made by other groups.

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