Low-Degree Low-Order Solar p Modes As Seen By GOLF On board SOHO |
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| Authors: | GarcÍa RA Régulo C Turck-Chièze S Bertello L Kosovichev AG Brun AS Couvidat S Henney CJ Lazrek M Ulrich RK Varadi F |
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| Institution: | (1) Service d'Astrophysique, CEA/DSM/DAPNIA, CE Saclay, 91191 Gif sur Yvette, France;(2) Instituto de Astrofísica de Canarias, 38205, La Laguna, Tenerife, Spain;(3) Dept. de Astrofisica, Universidad de La Laguna, La Laguna, 38206 Tenerife, Spain;(4) Department of Physics and Astronomy, UCLA, Los Angeles, CA, 90095-1562, U.S.A;(5) HEPL, Stanford University, Stanford, CA, 94305-4085, U.S.A;(6) JILA, University of Colorado, Boulder, CO 80309-0440, USA;(7) National Solar Observatory, 950 North Cherry Avenue, Tucson, AZ 85726-6732, USA;(8) Centre Nationale de la Recherche, CNCPRST, Rabat, Morocco |
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| Abstract: | Data recovered from the GOLF experiment on board the ESA/NASA SOHO spacecraft have been used to analyze the low-order low-degree solar velocity acoustic-mode spectrum below  =1.5 mHz (i.e., 1 n9,l2). Various techniques (periodogram, RLAvCS, homomorphic-deconvolution and RLSCSA) have been used and compared to avoid possible biases due to a given analysis method. In this work, the acoustic resonance modes sensitive to the solar central region are studied. Comparing results from the different analysis techniques, 10 modes below 1.5 mHz have been identified. |
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