Solar Physics

, Volume 200, Issue 1–2, pp 361–379

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

  • R.A. GarcÍa
  • C. Régulo
  • S. Turck-Chièze
  • L. Bertello
  • A.G. Kosovichev
  • A.S. Brun
  • S. Couvidat
  • C.J. Henney
  • M. Lazrek
  • R.K. Ulrich
  • F. Varadi
Article

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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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • R.A. GarcÍa
    • 1
  • C. Régulo
    • 2
    • 3
  • S. Turck-Chièze
    • 1
  • L. Bertello
    • 4
  • A.G. Kosovichev
    • 5
  • A.S. Brun
    • 1
    • 6
  • S. Couvidat
    • 1
  • C.J. Henney
    • 7
  • M. Lazrek
    • 8
  • R.K. Ulrich
    • 4
  • F. Varadi
    • 4
    • 8
  1. 1.Service d'AstrophysiqueCEA/DSM/DAPNIACE SaclayFrance
  2. 2.Instituto de Astrofísica de CanariasTenerifeSpain
  3. 3.Dept. de AstrofisicaUniversidad de La LagunaTenerifeSpain
  4. 4.Department of Physics and AstronomyUCLALos AngelesU.S.A
  5. 5.HEPL, Stanford UniversityStanfordU.S.A
  6. 6.JILA, University of ColoradoBoulderUSA
  7. 7.National Solar ObservatoryTucsonUSA
  8. 8.Centre Nationale de la RechercheCNCPRSTRabatMorocco

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