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WIYN Open Cluster Study: Tidal Interactions in Solar-Type Binaries

Published online by Cambridge University Press:  26 May 2016

S. Meibom  and
R. D. Mathieu
S. Meibom
Affiliation:
University of Wisconsin, Department of Astronomy, Madison WI 53706 USA
R. D. Mathieu
Affiliation:
University of Wisconsin, Department of Astronomy, Madison WI 53706 USA

Abstract

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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.

Type
Session 1 Observations of Rotating Stars
Information
Symposium - International Astronomical Union , Volume 215: Stellar Rotation , 2004 , pp. 170 - 176
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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