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Influence of a Close Companion on the Variability of a Mira-Type Star

Published online by Cambridge University Press:  12 April 2016

G. M. Rudnitskij*
Affiliation:
Sternberg Astronomical Institute, Moscow State University, 13, Universitetskij Prospekt, Moscow, 119899, Russia

Abstract

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The effects of a low-mass companion (a planet?) revolving around a red giant at a short distance (inside its circumstellar envelope) are discussed. Calculations are given for a conical shock wave, induced by the orbital motion of the companion. Consequences for the stellar spectrum and light curve are derived, and predictions for the evolution of such a system are made.

Type
Part 5. Theoretical Models of Classical Pulsating Stars
Copyright
Copyright © Astronomical Society of the Pacific 2000

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