Photometric Mass Ratios of Eclipsing Binary Stars

Details Photometric Mass Ratios of Eclipsing Binary Stars Photometric Mass Ratios of Eclipsing Binary Stars

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ap%26ss.296..221t&link_type=abstract

Astrophysics and Space Science, Volume 296, Issue 1-4, pp. 221-230

Astronomy and Astrophysics

Astrophysics

22

Mass Ratio, Binaries:Eclipsing, Binaries:Overcontact, Binaries:Semi-Detached

Scientific paper

Following a brief history of measurement of eclipsing binary mass ratios from light curves, we show that photometric mass ratios for overcontact and semi-detached binaries are reliable because the relative stellar radii, R/a, are accurately measured and not, as commonly claimed, because of information in the light variation outside eclipse. We explore the accuracy of photometric mass ratios by solving synthetic data of typical precisions for a semi-detached and an overcontact binary for orbital inclinations from 89∘ down into the partial eclipse range.

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