Are Solar Acoustic Modes Correlated ?

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dc.creatorFoglizzo, T.
dc.creatorGarcia, R. A.
dc.creatorBoumier, P.
dc.creatorCharra, J.
dc.creatorGabriel, A. H.
dc.creatorGrec, G.
dc.creatorRobillot, J. M.
dc.creatorCortes, T. Roca
dc.creatorTurck-Chieze, S.
dc.creatorUlrich, R. K.
dc.date1997-09-10
dc.date.accessioned2026-07-07T02:24:11Z
dc.date.available2026-07-07T02:24:11Z
dc.descriptionWe have studied the statistical properties of the energy of individual acoustic modes, extracted from 310 days of GOLF data near the solar minimum. The exponential distribution of the energy of each mode is clearly seen. The modes are found to be uncorrelated with a +-0.6 % accuracy, thus supporting the hypothesis of stochastic excitation by the solar convection. Nevertheless, the same analysis performed on the same modes just before the solar maximum, using IPHIR data, rejects the hypothesis of no correlation at a 99.3 % confidence level. A simple model suggests that 31.3 +-9.4 % of the energy of each mode is coherent among the modes studied in IPHIR data, correponding to a mean correlation of 10.7 +-5.9 %.
dc.description10 pages A&A Latex, 13 EPSF figures, to appear in A&A
dc.identifierhttps://arxiv.org/abs/astro-ph/9709095
dc.identifierhttp://arxiv.org/abs/astro-ph/9709095
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/11523
dc.subjectAstrophysics
dc.titleAre Solar Acoustic Modes Correlated ?
dc.typetext

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