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MDI-SOHO Measures of Solar Radius Variation

Published online by Cambridge University Press:  13 May 2016

M. Emilio ,
J. R. Kuhn ,
R. I. Bush  and
P. Scherrer
M. Emilio
Affiliation:
Institute for Astronomy, University of Hawaii, Honolulu HI 96822
J. R. Kuhn
Affiliation:
Institute for Astronomy, University of Hawaii, Honolulu HI 96822
R. I. Bush
Affiliation:
Stanford University, Stanford, CA 94305
P. Scherrer
Affiliation:
Stanford University, Stanford, CA 94305

Abstract

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Is the Solar Radius a constant? Ground experiments show evidence of possible variations in the visual solar semi diameter that are correlated with the solar activity. Those measurements are limited by the Earth's atmospheric turbulance. It is importance to accurately determine the solar radius variations because of their implication for stellar structure and possible relation to the terrestrial climate. Here we report on data from a space experiment (MDI-SOHO) used to detect solar diameter fluctuations. We stabilish a superior limit for changes in the solar radius.

Type
Session I: Global Structure and Evolution of the Solar Interior
Information
Symposium - International Astronomical Union , Volume 203: Recent Insights into the Physics of the Sun and Heliosphere: Highlights from Soho and Other Space Missions , 2001 , pp. 101 - 104
Copyright
Copyright © Astronomical Society of the Pacific 2001 

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