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Searching for G-Modes at the Solar Limb

Published online by Cambridge University Press:  08 February 2017

C.G. Toner  and
S.M. Jefferies
C.G. Toner
Affiliation:
National Solar Observatory, P.O. Box 26732, Tucson, AZ 85726 USA
S.M. Jefferies
Affiliation:
National Solar Observatory, P.O. Box 26732, Tucson, AZ 85726 USA

Abstract

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We have used a differential technique to look for the signature of g-modes at the limb of full-disk intensity images of the Sun. Our spectra show tentative evidence for a set of peaks that are equally spaced in period, as predicted by asymptotic theory. The period spacing that we find is ~ 27.5 minutes. If interpreted as ℓ = 1 g-modes, this implies To ~ 39.0 minutes.

Type
I. Global Structure and Evolution of the Solar and Stellar Interior
Information
Symposium - International Astronomical Union , Volume 185: New Eyes to See Inside the Sun and Stars , 1998 , pp. 55 - 56
Copyright
Copyright © Kluwer 1998 

References

Toner, C.G., Jefferies, S.M. and Duvall, T.L. Jr. 1997, Astrophys. J., 478, 817.Google Scholar
Horne, J.H., and Baliunas, S.L. 1986, Astrophys. J. 302, 757.Google Scholar