Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.131..785s&link_type=abstract
(IAU, Colloquium on Cataclysmic Variables. Recent Multi-Frequency Observations and Theoretical Developments, 93rd, Bamberg, West
Astronomy and Astrophysics
Astrophysics
6
Binary Stars, Stellar Spectra, Stellar Temperature, Stellar Winds, White Dwarf Stars, Iue, Stellar Mass Accretion, Stellar Models, Ultraviolet Spectra, Visible Spectrum
Scientific paper
An analysis of IUE observations of AM CVn, obtained at low resolution with the short-wavelength camera in 1978, 1979, and 1983, is presented. From comparison with theoretical line profiles, it is found that the present data are consistent with the picture of a hot optically thick wind originating from the polar region of the accreting star, and observed in front of a bright disk. The shape of the absorption lines is accounted for by an inclination of the system of 30 deg or less. It is suggested that the variations noted in the line depths and in the blue shifts may be due to a gusty wind and changing geometry of the wind flow pattern, with the wind pattern changing on time scales as short as a few hours.
Kjeldseth-Moe Olav
Solheim Jan-Erik
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