Influence of the equations of state and of the Z value on the solar five-minute oscillation

Details Influence of the equations of state and of the Z value on the solar five-minute oscillation Influence of the equations of state and of the Z value on the solar five-minute oscillation

Jul 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...123..283s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 123, no. 2, July 1983, p. 283-288. Research supported by the Japan Society for

Astronomy and Astrophysics

Astrophysics

46

Electrostatics, Magnetohydrodynamic Stability, Metallicity, Solar Oscillations, Stellar Models, Stellar Structure, Convection, Correction, Eigenvalues, Equations Of State, Solar Atmosphere

Scientific paper

Theoretical eigenfrequencies of the standard solar models computed by taking into account the electrostatic correction in the equation of state have been calculated for p-mode oscillations with both low and high degree l. It is found that the introduction of the electrostatic correction considerably improves the agreement between the theoretical frequencies and the observations of the oscillations with low degree l and those with high degree l, concurrently. A fitting of the theoretical frequencies with the observations has been done by supposing that the eigenvalues vary linearly with Z. However, there still remains a small discrepancy between the theory and observations in the sense that the theoretical frequencies of oscillations with low l are slightly lower than the observed ones while those with high l are slightly higher than the observations.

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