Photometric Mass Ratios of Eclipsing Binary Stars |
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| Authors: | Dirk Terrell R E Wilson |
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| Institution: | (1) Department of Space Studies, Southwest Research Institute, Boulder, CO, USA;(2) Department of Astronomy, University of Florida, Gainesville, FL, USA |
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| Abstract: | 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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| Keywords: | mass ratio binaries:eclipsing binaries:overcontact binaries:semi-detached |
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