Bibcode
Pérez, I.; Roca-Cortés, T.; GOLF Team
Bibliographical reference
Romanian Astronomical Journal, Vol. 9, Supplement, p.141
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1999
Citations
0
Refereed citations
0
Description
The excitation of p-modes seems to be produced by turbulence in the
convection zone (see, e.g., Kumar, 1997 and the references therein).
Low-degree p-mode allowed a study of the energy distribution of the
p-mode oscillations, concluding that it is of Boltzmann type (Elsworth
et al., 1995; Chaplin et al., 1997). Moreover, these authors suggest
that the observed distribution has the property that the high energy
events exceed the Boltzmann value, wondering whether this property could
have a cause other than stochastic excitation by turbulence. Amongst
these, there can be: (a) an artifact due to its very small frequency
resolution (? 28 ?Hz ? 10 hours), or (b) some other occasional energy
release due to high energy magnetic events. In this work, the energetic
distribution of the observed p-mode peaks is studied, having the
posibility of using a higher (several) frequency resolution on the basis
of the data collected by GOLF, onboard SOHO.