First photometric investigation of some ASAS binary systems


Abstract: We present the first light curve solutions of the four binary systems observed and catalogued by the All Sky Automated Survey (ASAS) program. The light curves are analyzed by using PHOEBE software, which is based on the Wilson?Devinney method. The light curve parameters are derived and the estimated physical parameters are calculated from the result of the analyses. We compare our targets to well-known binaries of similar type on the Hertzsprung-Russell diagram and mass-radius plane. The evolutionary states of the components are also discussed.

Keywords: Eclipsing binary stars, fundamental parameters of stars, stars: individual (ASAS 070530+1521.0, ASAS 073404-3215.9, ASAS 143405-5814.5, ASAS 163424-4919.5)

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