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Tidal forces and variability in close binary stars: the β-factor

Published online by Cambridge University Press:  26 May 2016

Gloria Koenigsberger ,
Edmundo Moreno  and
Fausto Cervantes
Gloria Koenigsberger
Affiliation:
Centro de Ciencias Físicas, Instituto de Astronomía, UNAM, Apartado Postal 70-264, Ciudad Universitaria, 04510 México D.F., México
Edmundo Moreno
Affiliation:
Centro de Ciencias Físicas, Instituto de Astronomía, UNAM, Apartado Postal 70-264, Ciudad Universitaria, 04510 México D.F., México
Fausto Cervantes
Affiliation:
Centro de Ciencias Físicas, Instituto de Astronomía, UNAM, Apartado Postal 70-264, Ciudad Universitaria, 04510 México D.F., México

Abstract

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We present the results of calculations that illustrate the effects, on orbital timescales, produced on the external layer of a star that is in a binary system in which the stellar rotation period is not synchronized with the orbital period. The calculations show how, for a fixed set of parameters, the amplitudes of the oscillations depend on stellar radius and on β, the ratio between the stellar rotation angular velocity and the orbital angular velocity.

Type
Part 1. Atmospheres of Massive Stars
Information
Symposium - International Astronomical Union , Volume 212: A Massive Star Odyssey: From Main Sequence to Supernova , 2003 , pp. 101 - 105
Copyright
Copyright © Astronomical Society of the Pacific 2003 

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