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Convection-Induced Oscillatory Thermal Modes in Red Giants: A New Type of Stellar Oscillation

Published online by Cambridge University Press:  12 April 2016

P. R. Wood
P. R. Wood*
Affiliation:
Research School of Astronomy & Astrophysics, Australian National University, Private Bag, Weston Creek PO, ACT 2611, Australia

Abstract

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A new type of oscillatory thermal mode has been found in red giant stars. The modes arise because of the interaction of stellar oscillations and convective energy transport. All the modes found are highly damped. However, it is possible that a different treatment of convection could lead to unstable modes capable of explaining the long secondary periods observed in some red giants.

Type
Part 5. Theoretical Models of Classical Pulsating Stars
Information
International Astronomical Union Colloquium , Volume 176: The Impact of Large-Scale Surveys on Pulsating Star Research , 2000 , pp. 379 - 380
Copyright
Copyright © Astronomical Society of the Pacific 2000

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