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Mass Flow due to Heating in a Binary System: Application to U Cephei

Published online by Cambridge University Press:  12 April 2016

Yoji Kondo  and
Jerry L. Modisette
Yoji Kondo
Affiliation:
Laboratory for Astronomy and Solar Physics, NASA/GSFC Greenbelt, MD 20771, U.S.A.
Jerry L. Modisette
Affiliation:
Modisette, Inc., 4223 Richmond Avenue, Houston, TX 77027, U.S.A.

Abstract

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We have investigated the possibility of mass flow due to the heating of the cooler component in a close binary system. The heating may be caused by irradiation from the hotter companion or by other mechanisms such as the spacial coincidence of non-linear “g-mode” oscillations in the cooler star. The 2.4-day period binary U Cep, in which gas streaming has been observed, has been chosen for model calculations. Preliminary results show that such a heating of the lower atmosphere of the cooler star could lead to mass flow at an average rate of 10-9 to 10-7 solar mass per year without the star's necessarily filling its critical Roche surface.

Type
Part III: Evolutionary Processes in Close Binary Systems
Information
International Astronomical Union Colloquium , Volume 69: Binary and Multiple Stars as Tracers of Stellar Evolution , 1982 , pp. 317 - 319
Copyright
Copyright © Reidel 1982

References

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