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Detecting individual gravity modes in the Sun: Chimera or reality?

Published online by Cambridge University Press:  21 October 2010

Rafael A. García
Rafael A. García*
Affiliation:
Laboratoire AIM, CEA/DSM – CNRS - Université Paris Diderot – IRFU/SAp, 91191 Gif-sur-Yvette Cedex, France email: [email protected]
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Abstract

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Over the past 15 years, our knowledge of the interior of the Sun has tremendously progressed by the use of helioseismic measurements. However, to go further in our understanding of the solar core, we need to measure gravity (g) modes. Thanks to the high quality of the Doppler-velocity signal measured by GOLF/SoHO, it has been possible to unveil the signature of the asymptotic properties of the solar g modes, thus obtaining a hint of the rotation rate in the core (García et al. 2007, 2008a). However, the quest for the detection of individual g modes is not yet over. In this work, we apply the latest theoretical developments to guide our research using GOLF velocity time series. In contrary to what was thought till now, we are maybe starting to identify individual low-frequency g modes. . .

Keywords

Sun: helioseismologySun: oscillationsSun: interiorSun: rotation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Highlights H15: Highlights of Astronomy , November 2009 , pp. 345 - 346
Copyright
Copyright © International Astronomical Union 2010

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