Physics
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...248..647v&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 248, no. 2, Aug. 1991, p. 647-655. Research supported by FRFC.
Physics
4
Distribution Functions, Solar Oscillations, Stellar Oscillations, Asymptotic Methods, Polytropic Processes, Propagation Modes, Solar Interior, Solar Physics
Scientific paper
The small frequency separations between 5-min solar oscillations of low degree l and radial order n and of low degree l + 2 and radial order n - 1 and their origin are examined. Exact values of several quantities Dn,0 are determined for a polytropic model with an index of 3 and with a total mass and total radius equal to the solar mass and solar radius. The integrand Gn,l of an exact integral for Dn,l is then introduced as a distribution function describing the variation of the contributions of the various polytropic layers to the separation. Finally, the integrand of the asymptotic approximations of Dn,l is considered as a distribution function of the contributions of the polytropic layers. This distribution function is found to be largely different from the integrand Gn,l.
Hoolst Tim Van
Smeyers Paul
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