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Mass Exchange Via Pulsational Dumping from and F Supergiant

Published online by Cambridge University Press:  07 August 2017

S. B. Parsons ,
R. C. Dempsey  and
B. W. Bopp
S. B. Parsons
Affiliation:
Astronomy Programs, Computer Sciences Corporation Space Telescope Science Institute, 3700 San Martin Drive Baltimore, MD 21218, U.S.A.
R. C. Dempsey
Affiliation:
Department of Physics and Astronomy, The University of Toledo Toledo, OH 43606, U.S.A.
B. W. Bopp
Affiliation:
Department of Physics and Astronomy, The University of Toledo Toledo, OH 43606, U.S.A.

Abstract

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HD 207739 = V1914 Cyg, a tidally distorted F8 supergiant plus an obscured hot non-degenerate star, is presently in a state of episodic mass dumping onto an accretion shell around the hot component. Unrelated to the 141 day orbital cycle, the obscuration has a 50 day periodicity during which most of the UV flux diminishes rapidly, then gradually brightens. The more evolved yet less massive F supergiant is thus presumably shedding mass due to its pulsation.

Type
Oral and Contributed Papers
Information
Symposium - International Astronomical Union , Volume 151: Evolutionary Processes in Interacting Binary Stars , 1992 , pp. 341 - 344
Copyright
Copyright © Kluwer 1992 

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