Gamma-ray emission from Cataclysmic variables. 1: The Compton EGRET survey | Zendy

E. M. Schlegel | Zendy; P. Barrett | Zendy; O. C. de Jager | Zendy; G. Chanmugam | Zendy; S. D. Hunter | Zendy; J. R. Mattox | Zendy

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Gamma-ray emission from Cataclysmic variables. 1: The Compton EGRET survey

Author(s) -

E. M. Schlegel,

P. Barrett,

O. C. de Jager,

G. Chanmugam,

S. D. Hunter,

J. R. Mattox

Publication year - 1995

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/175175

Subject(s) - physics , astrophysics , cataclysmic variable star , gamma ray , white dwarf , egret , observatory , astronomy , luminosity , fermi gamma ray space telescope , stars , telescope , light curve , galaxy

We report the results of the first gamma-ray survey of cataclysmic variables (CVs) using observations obtained with the Energetic Gamma Ray Experiment Telescope (EGRET) instrument on the Compton Observatory. We briefly describe the theoretical models that are applicable to gamma-ray emission from CVs. These models are particularly relevant to magnetic CVs containing asynchronously rotating white dwarfs. No magnetic CV was detected with an upper limit on the flux at 1 GeV of approximately 2 x 10(exp -8)/sq cm/sec, which corresponds to an upper limit on the gamma-ray luminosity of approximately 10(exp 31) ergs/sec, assuming a typical CV distance of 100 pc.

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