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Paper: Light Curve Morphology: The Evolution of the O‘Connell Effect and the Maxima Separation
Volume: 496, Living Together: Planets, Host Stars and Binaries
Page: 293
Authors: Debski, B.; Zola, S.; Baran, A.
Abstract: We have used starspot migration models to obtain constraints on the co-latitude of a moving dark region on the surface of a contact binary system. Our study focused on two migration indicators: the evolution of the O‘Connell effect, and changes in the brightness of the maxima. The amplitude and shape of these signals obtained observationally were confronted with simulations, giving rather sharp boundaries for the allowed co-latitude of the migrating starspots. Our models prefer large, polar or circumpolar migrating starspots. This may explain how the long-lived migrating spots survive the journey in latitude around the neck of the contact binary.
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