PG 1012-029 - A high-excitation eclipsing cataclysmic variable

Details PG 1012-029 - A high-excitation eclipsing cataclysmic variable PG 1012-029 - A high-excitation eclipsing cataclysmic variable

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...276..233p&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 276, Jan. 1, 1984, p. 233-242.

Other

40

Eclipsing Binary Stars, Stellar Mass Accretion, Variable Stars, Astronomical Photometry, Light Curve, Stellar Spectrophotometry, Ultraviolet Spectra

Scientific paper

The paper presents a photometric and spectrophotometric analysis of a new eclipsing cataclysmic variable, PG 1012-029, with an orbital period of 3 hr 14 minutes 18.7 s. The eclipse depth reaches 1.9 mag, is rounded at minimum, and shows a prolonged egress 'shoulder', as found for UX UMa and some other eclipsing systems. The spectrum shows strong high-excitation lines at optical and UV wavelengths. A large fraction of the He II flux disappears during the eclipse, when the hydrogen spectrum fits a cooler temperature, and the continuum reddens. This behavior is attributed to eclipse of the hotter inner disk region.

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