The physical parameters of WZ Sge. II - Eclipse analysis

Details The physical parameters of WZ Sge. II - Eclipse analysis The physical parameters of WZ Sge. II - Eclipse analysis

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....76..168r&link_type=abstract

Astronomy and Astrophysics, vol. 76, no. 2, July 1979, p. 168-175.

Astronomy and Astrophysics

Astrophysics

21

Eclipsing Binary Stars, Light Curve, Variable Stars, Brightness, Line Shape, Stellar Luminosity

Scientific paper

Eclipse light curves of WZ Sge are analyzed by means of a simple eclipse model. Computation of a least-squares fit to three previously published light curves shows that the two component radii and the orbital inclination cannot be determined independently and that only relations for two of these three parameters as a function of the third can be obtained. This is attributed to the fact that the investigated light curves exhibit only two well-defined properties, viz., the half-width and the steepness of the sides, since intrinsic flickering prevents the determination of any additional quantity for the eclipse. It is concluded that the eclipse analysis of Robinson et al. (1978) is not valid and that the physical parameters derived on the basis of this analysis are not reliable.

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