Effects of Random Flows on the Solar f Mode: I. Horizontal Flow

Details Effects of Random Flows on the Solar f Mode: I. Horizontal Flow Effects of Random Flows on the Solar f Mode: I. Horizontal Flow

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008soph..251..453m&link_type=abstract

Solar Physics, Volume 251, Issue 1-2, pp. 453-468

Physics

1

Surface Gravity Waves, Turbulence, Dispersion Relation, Damping

Scientific paper

We examine the effect of random horizontal flows on the dispersion relation of high-degree solar f modes. We follow the approach of Murawski and Roberts ( Astron. Astrophys. 272, 595, 1993), addressing some limitations of that paper, and extending the results to include damping and to apply for a general turbulent spectrum. We find a reduction in frequency below the classical result that is about three times that observed. For large wavenumber the damping rate is larger than the frequency correction by a factor of the order of the nondimensional wavenumber, which appears to be consistent with observation.

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