Effects of magnetic fibrils on solar oscillation frequencies - Mean field theory

Details Effects of magnetic fibrils on solar oscillation frequencies - Mean field theory Effects of magnetic fibrils on solar oscillation frequencies - Mean field theory

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...343..994z&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 343, Aug. 15, 1989, p. 994-1003.

Physics

15

Field Theory (Physics), Magnetohydrodynamic Waves, Solar Interior, Solar Magnetic Field, Solar Oscillations, Lorentz Force, Magnetic Flux, Photosphere

Scientific paper

It is quite likely that the solar interior magnetic field retains the fibril structure observed at photospheric levels down to some significant depth in the convection zone. Furthermore, previous work has shown that the effect of magnetic fibrils on p-mode oscillation frequencies is enhanced by 1/f, the reciprocal of the fibril filling factor, over the effect of an equal amount of flux in diffuse form. Previous calculations have used multiple scattering methods which effectively preclude the inclusion of stratification or consideration of realistic geometries. In this paper an alternative simpler method of treating fibrils is developed on the basis of mean-field theory originally developed by Parker (1982).

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