The solar-cycle dependence of low-degree p-mode parameters

Thierry Toutain, A. G. Kosovichev

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


Thanks to the extension of the SOHO mission it is possible to analyze with a good accuracy the dependence of the low-degree p-mode parameters on the solar cycle. We have constructed from the LOI-proxy data (MDI) two time series of 784 days each, one taken at low activity and the other one at high activity. We have focused on analyzing the solar-cycle dependence of the linewidth, the splitting, the asymmetry and the frequency shift of the low-degree p modes. It turns out that some of these parameters exhibit a significant dependence on solar cycle moreover there is also a dependence on m the azimuthal order.

Original languageEnglish (US)
Pages (from-to)103-106
Number of pages4
JournalEuropean Space Agency, (Special Publication) ESA SP
Issue number508
StatePublished - Jun 1 2002
Externally publishedYes
EventSOHO 11 Symposium on From Solar Min to Max: Half a Solar Cycle with SOHO - Davos, Switzerland
Duration: Mar 11 2002Mar 15 2002

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science


  • Solar oscillations


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