Basu, S. ; Antia, H. M. ; Bogart, R. S. (2006) Asphericity and time variation of the near-surface layers of the sun Proceedings of SOHO-17, 10 Years of SOHO and Beyond, Giardini Naxos, Sicily, Italy . pp. 50-53.
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Official URL: http://articles.adsabs.harvard.edu/cgi-bin/nph-iar...
Abstract
We present results on the structure of the near-surface layers of the Sun obtained by inverting frequencies of highdegree solar modes from "ring diagrams". We find that there is a substantial latitudinal variation of both sound speed and the adiabatic index Γ1 in the outer 2% of the Sun. We find that both the sound-speed and Γ1 profiles change with changes in the level of solar activity.
Item Type: | Article |
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Source: | Copyright of this article belongs to European Space Agency. |
Keywords: | Sun: Oscillations; Sun: Interior |
ID Code: | 75687 |
Deposited On: | 24 Dec 2011 15:11 |
Last Modified: | 18 May 2016 19:38 |
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