AAS 201st Meeting, January, 2003
Session 4. Eclipsing and Spectroscopic Binaries
Poster, Monday, January 6, 2003, 9:20am-6:30pm, Exhibit Hall AB

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[4.01U] Light Curve Asymmetry in W Corvi

R. E. Cohen (Wesleyan University), W. Van Hamme (Florida International University)

We solve light and radial velocity curves of the double-lined eclipsing binary W Corvi. Using the Wilson-Devinney program, we derive a unique set of physical parameters consistent with observations obtained over the past 40 years at different epochs.

Light curve asymmetries, which change over time, are modeled using starspots. We find W Corvi to be marginally overcontact. Because of parameter uncertainties, however, we cannot rule out a broken-contact configuration. We discuss our results in light of the thermal relaxation oscillation model for W Ursae Majoris binaries.

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Bulletin of the American Astronomical Society, 34, #4
© 2002. The American Astronomical Soceity.