Gamma-Ray Emission from Cataclysmic Variables. II. The Compton COMPTEL Survey

Details Gamma-Ray Emission from Cataclysmic Variables. II. The Compton COMPTEL Survey Gamma-Ray Emission from Cataclysmic Variables. II. The Compton COMPTEL Survey

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aas...185.2113b&link_type=abstract

American Astronomical Society, 185th AAS Meeting, #21.13; Bulletin of the American Astronomical Society, Vol. 26, p.1345

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the results of the first gamma -ray survey of more than 40 cataclysmic variables (CVs) using observations obtained with the COMPTEL instrument on the Compton Observatory. Though no CV was detected, we find an average upper limit to the 1--30 MeV gamma -ray flux of ~ 3 times 10(-6) photons cm(-2) s(-1) . This gives an upper limit to the gamma -ray luminosity of ~ 10(31) erg s(-1) , assuming a typical CV distance of 100 pc. The luminosity upper limit suggests that the conversion efficiency of accretion luminosity to gamma -ray luminosity by non-thermal processes is less than 1%, consistent with that found at higher gamma -ray energies by EGRET.

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