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WIYN Open Cluster Study: Tidal Interactions in Solar type Binaries

S. Meibom·R. D. Mathieu
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Abstract

We present an ongoing study on tidal interactions in late-type close binary stars. New results on tidal circularization are combined with existing data to test and constrain theoretical predictions of tidal circularization in the pre-main-sequence (PMS) phase and throughout the main-sequence phase of stellar evolution. Current data suggest that tidal circularization during the PMS phase sets the tidal cutoff period for binary populations younger than ~1 Gyr. Binary populations older than ~1 Gyr show increasing tidal cutoff periods with age, consistent with active main-sequence tidal circularization.

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S. Meibom, R. D. Mathieu. 2003-03-10. WIYN Open Cluster Study: Tidal Interactions in Solar type Binaries. https://arxiv.org/abs/astro-ph/0303197

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