Radiation of accretion discs - The eclipses

Details Radiation of accretion discs - The eclipses Radiation of accretion discs - The eclipses

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.208...57s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 208, May 1, 1984, p. 57-73.

Other

7

Accretion Disks, Binary Stars, Eclipses, Light Curve, Stellar Models, Stellar Radiation, Mass To Light Ratios, Optical Thickness, Radii, Roche Limit, Stellar Atmospheres, Stellar Mass Accretion, Stellar Temperature, Ubv Spectra

Scientific paper

Light curves have been calculated for eclipses of the accretion disk in a cataclysmic binary. The Roche geometry of the cool component was taken into account and the stellar atmospheres were interpolated to provide the local spectrum of the radiation from the disk. The dependence of the light curve on the parameters of the disk is discussed. It has been found that the effective radius of the disk, the 'photometric radius', determining the slope of the light curve, is a good indicator of the accretion rate M, virtually independent of other parameters of the binary. As an example, the light curve of LX Ser (Stepanyan's star) is discussed.

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