Asymptotic analysis of linear non-adiabatic non-radial oscillation of the solar p-modes.

Details Asymptotic analysis of linear non-adiabatic non-radial oscillation of the solar p-modes. Asymptotic analysis of linear non-adiabatic non-radial oscillation of the solar p-modes.

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...317..949b&link_type=abstract

Astronomy and Astrophysics, v.317, p.949-952

Astronomy and Astrophysics

Astrophysics

Solar Oscillation

Scientific paper

The non-adiabatic frequencies of a standard solar model are discussed in this paper. The physics describing the radiative losses is included in the non-adiabatic effects. An asymptotic approximation to the non-adiabatic non-radial p-modes of the Sun is developed. An exact solution of non-adiabatic oscillations, which results in an eigenfrequency equation with the model-dependent surface phase shift, is assumed in the outmost layers, where the asymptotic description is invalid. For the lower degree modes, the phase shift is a function of frequency alone. Compared with an adiabatic approximation, the non-adiabatic approximation of the p-mode frequencies fills more of the gap between theory and observation.

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