The X-ray and optical characteristics of the cataclysmic variables V794 Aquilae

Details The X-ray and optical characteristics of the cataclysmic variables V794 Aquilae The X-ray and optical characteristics of the cataclysmic variables V794 Aquilae

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...249l..61s&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 249, Oct. 15, 1981, p. L61-L64.

Astronomy and Astrophysics

Astrophysics

10

Light Curve, Stellar Spectra, Ultraviolet Radiation, Variable Stars, X Ray Sources, Balmer Series, H Lines, Helium Ions, Stellar Spectrophotometry

Scientific paper

Observations of V794 Aql have revealed features that are consistent with its inclusion in the class of cataclysmic variables. The features include: (1) a 0.1-4.5 keV luminosity of 5 x 10 to the 30th ergs/sec for a d-value of 100 pc, with a hardness ratio of 11; (2) blue colors; (3) 0.5 mag variability on 40-min time scales, and 3.0 mag variability on the time scale of one day; and (4) a weak He II 4686 A, which argues against classification of V794 Aql as an AM Her-type variable. It is predicted that V794 Aql has a period shorter than six hours, with a strong possibility for eclipses, and is a strong UV emission source.

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