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Test of the Optimization Techniques for the Photometric Analysis of Contact Binaries

Published online by Cambridge University Press:  07 August 2017

E. Lapasset ,
M. Gomez  and
R. Fariñas
E. Lapasset
Affiliation:
Observatorio Astronómico Univ. Nacional de Córdoba Laprida 854, 5000 Córdoba Argentina
M. Gomez
Affiliation:
Observatorio Astronómico Univ. Nacional de Córdoba Laprida 854, 5000 Córdoba Argentina
R. Fariñas
Affiliation:
Observatorio Astronómico Univ. Nacional de Córdoba Laprida 854, 5000 Córdoba Argentina

Abstract

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We present light curve analyses of contact binaries and comparisons with previously published cross-correlations radial velocity data. The critical parameter q (mass-ratio) obtained from a grid technique is confronted with the spectroscopic value. For total eclipsing systems, both values are always in a good or reasonable agreement, including some stars with shallow light curves. For partial eclipsing systems, convergent photometric and spectroscopic results are obtained for an important set of stars. Two exceptions are V523 Cas and XY Boo for which some arguments are suggested. We concluded that reliable parameter determinations can be obtained from pure photometric solutions, by means of grid techniques.

Type
Oral and Contributed Papers
Information
Symposium - International Astronomical Union , Volume 151: Evolutionary Processes in Interacting Binary Stars , 1992 , pp. 387 - 390
Copyright
Copyright © Kluwer 1992 

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