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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: rafael.garcia@cea.fr
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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

References

Appourchaux, T., Belkacem, K., Broomhall, A.-M. et al. 2009, ARA&A, arXiv:0910.0848Google Scholar
Basu, S., Chaplin, W. J., Elsworth, Y., New, R., & Serenelli, A. M. 2009, ApJ, 699, 1403CrossRefGoogle Scholar
Belkacem, K., Samadi, R., Goupil, M. J., Dupret, M. A. 2009, A&A 494, 191Google Scholar
Gabriel, A. H., Grec, G., Charra, J. et al. 1995, Sol. Phys. 162, 61CrossRefGoogle Scholar
García, R. A., Roc ACortés, T., & Régulo, C. 1998, A&AS 128, 389Google Scholar
García, R. A., Turck-Chièze, S., Boumier, P. et al. 2005, A&A 442, 385Google Scholar
García, R. A., Turck-Chièze, S., Jiménez-Reyes, S. J. et al. 2007, Science 316, 1591CrossRefGoogle Scholar
García, R. A., Jiménez, A., Mathur, S. et al. 2008a, Astron. Nachrichten 329, 476CrossRefGoogle Scholar
García, R. A., Mathur, S., Ballot, J. et al. 2008b, Sol. Phys. 251, 119CrossRefGoogle Scholar
García, R. A., Mathur, S., & Ballot, J. 2008c, Sol. Phys 251, 135CrossRefGoogle Scholar
Jiménez, A. & García, R. A. 2009, ApJS 184, 288CrossRefGoogle Scholar
Mathur, S., Turck-Chièze, S., Couvidat, S., García, R. A. 2007, ApJ 668, 594CrossRefGoogle Scholar
Mathur, S., Eff-Darwich, A., García, R. A.x, Turck-Chièze, S. 2008, A&A 484, 517Google Scholar
Mathur, S., García, R. A., & Eff-Darwich, A. 2009, ASSP, arXiv:0902.4142Google Scholar
Michel, E., Baglin, A., Auvergne, M. 2008, Science 322, 558CrossRefGoogle Scholar
Turck-Chièze, S., García, R. A., Couvidat, S. et al. 2004, A&A 484, 517Google Scholar
Ulrich, R. K., García, R. A., Robillot, J.-M., et al. 2000, A&A 364, 799Google Scholar