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What can we Learn from Oscillation Studies about Irradiance and Radius Changes?

Published online by Cambridge University Press:  12 April 2016

Douglas Gough
Douglas Gough*
Affiliation:
Institute of Astronomyand Department of Applied Mathematics and Theoretical Physics, University of Cambridge, UK and Joint Institute for Laboratory Astrophysics, University of Colorado and National Institute of Standards and Technology, Boulder, CO 80303, USA

Abstract

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Dynamical and thermal modulation of the internal structure of the Sun can be manifest at the surface as changes in irradiance and radius. The relative magnitudes of these changes could provide a diagnostic of at least the location of the primary modulation, if only the mechanism were known. Variations of the frequencies of solar oscillations offer additional potentially valuable diagnostics, but unfortunately at present the mechanisms causing those variations and their relation to the structural and irradiance changes are not yet understood. In this lecture I shall review some of the theoretical conjectures that have been put forward to explain the observations.

Type
Solar and Stellar Oscillations, Irradiance Variations, and their Interpretation
Information
International Astronomical Union Colloquium , Volume 143: The Sun as a Variable Star: Solar and Stellar Irradiance Variations , 1994 , pp. 252 - 263
Copyright
Copyright © Kluwer 1994

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