The intern. rotation of the Sun inferred from the rotational splitting of acoustic and gravity mode multiplets

Details The intern. rotation of the Sun inferred from the rotational splitting of acoustic and gravity mode multiplets The intern. rotation of the Sun inferred from the rotational splitting of acoustic and gravity mode multiplets

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.220..187h&link_type=abstract

In ESA The Hydromagnetics of the Sun p 187-188 (SEE N85-25091 14-92)

Physics

4

Fine Structure, Helioseismology, Solar Oscillations, Solar Rotation, Coupled Modes, Stellar Cores, Stellar Gravitation

Scientific paper

Measures of the equatorial surface frequency and measures of rotational splitting from 100 nonradial multiplets of acoustic modes and internal gravity modes are used to infer the internal rotation of the Sun. The rotational splitting measures are obtained from diameter type observations, where the effects of differential rotation were included in the data analysis. It is found that the omega rises 30% just below the surface and is proportional to it in the convection zone. The omega then makes a sharp transition to 3 micro Hz at the bottom of the convection zone and decreases by 3% in going from the convection zone to the core. The sharp transition locates the bottom of the convection zone at 0.75R. The observed rotational effects r-1.5. are consistent with the inferred omega, and omega is stable to the Rayleigh criterion in the convection zone.

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