Eclipses in Cataclysmic Variables with Stationary Accretion Disks. I. A New Approach to the Problem of Light Curve Analysis

Details Eclipses in Cataclysmic Variables with Stationary Accretion Disks. I. A New Approach to the Problem of Light Curve Analysis Eclipses in Cataclysmic Variables with Stationary Accretion Disks. I. A New Approach to the Problem of Light Curve Analysis

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aca....44...45s&link_type=abstract

Acta Astronomica, v.44, pp.45-58, (1994).

Astronomy and Astrophysics

Astronomy

19

Binaries: Eclipsing, Novae: Cataclysmic Variables

Scientific paper

Light curves of cataclysmic variables with stationary accretion disks are a superposition of a disk light curve and a hot spot light curve. The contribution from the spot complicates the analysis of the disk eclipse. As a new approach to this problem, it is proposed to perform the light curve analysis in three parts: (1) decomposition of the observed light curve into the spot and disk light curves, (2) analysis of the disk light curve, and (3) analysis of the spot light curve, with parts (2) and (3) providing independent constraints on system parameters. Simple models and methods, to be used in the analysis of the disk and spot eclipse light curves, are then described. The model disk light curves include, in particular, the effects connected with the finite geometrical thickness of the disk. A rediscussion of the M_V vs. dot M relation for stationary accretion disks shows that effects due to the finite geometrical thickness of the disk can contribute significantly to its luminosity.

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