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Low-Degree Low-Order Solar p Modes As Seen By GOLF On board SOHO

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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 ν=1.5 mHz (i.e., 1≤n≤9,l≤2). 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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Authors and Affiliations

  1. Service d'Astrophysique, CEA/DSM/DAPNIA, CE Saclay, 91191 Gif sur Yvette, France

    R.A. GarcÍa, S. Turck-Chièze, A.S. Brun & S. Couvidat

  2. Instituto de Astrofísica de Canarias, 38205, La Laguna, Tenerife, Spain

    C. Régulo

  3. Dept. de Astrofisica, Universidad de La Laguna, La Laguna, 38206, Tenerife, Spain

    C. Régulo

  4. Department of Physics and Astronomy, UCLA, Los Angeles, CA, 90095-1562, U.S.A

    L. Bertello, R.K. Ulrich & F. Varadi

  5. HEPL, Stanford University, Stanford, CA, 94305-4085, U.S.A

    A.G. Kosovichev

  6. JILA, University of Colorado, Boulder, CO, 80309-0440, USA

    A.S. Brun

  7. National Solar Observatory, 950 North Cherry Avenue, Tucson, AZ, 85726-6732, USA

    C.J. Henney

  8. Centre Nationale de la Recherche, CNCPRST, Rabat, Morocco

    M. Lazrek & F. Varadi

Authors
  1. R.A. GarcÍa
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  2. C. Régulo
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  3. S. Turck-Chièze
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  4. L. Bertello
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  5. A.G. Kosovichev
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  6. A.S. Brun
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  7. S. Couvidat
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  8. C.J. Henney
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  9. M. Lazrek
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  10. R.K. Ulrich
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  11. F. Varadi
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GarcÍa, R., Régulo, C., Turck-Chièze, S. et al. Low-Degree Low-Order Solar p Modes As Seen By GOLF On board SOHO. Solar Physics 200, 361–379 (2001). https://doi.org/10.1023/A:1010344721148

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  • DOI: https://doi.org/10.1023/A:1010344721148

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