Physical parameters of 62 eclipsing binary stars using the All Sky Automated Survey‐3 data − I

摘要: We present a detailed light-curve analysis of publicly available V-band observations 62 binary stars, mostly contact binaries, obtained by the All Sky Automated Survey (ASAS)-3 project between 2000 and 2009. Eclipsing binaries are important astronomical targets for determining physical parameters component stars from geometry their orbits. They provide an independent direct method measuring radii stars. improved ASAS determined periods ephemerides, Fourier phased light curves these These were used preliminary classification in our sample. The then analysed with aid Wilson-Devinney modelling technique order to obtain various geometrical binaries. spectroscopic mass ratios as radial velocity measurements literature one inputs modelling. Thus reliable estimations combined photometric data, error estimates made using heuristic scan method. For several systems sample, solutions first time would serve good source future based on more precise follow-up CCD observations. Out 39 is presented here photometry ratios. From analysis, we found 54 six semidetached two detached 2 ―a 4 plane classification, final was done Roche lobe