Solar convection

Details Solar convection Solar convection

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984colo.rept.....t&link_type=abstract

Final Report, 1 Mar. 1977 - 30 Nov. 1983 Colorado Univ., Boulder. Dept. of Astro-geophysics.

Physics

Geophysics

Convection, Solar Atmosphere, Stellar Motions, Sun, Atmospheric Pressure, Braking, Observation, Penetration, Solar Oscillations

Scientific paper

A thorough study of convective penetration into the solar atmosphere and convective motions in sub-atmospheric layers on the sun was made. Non-linear anelastic and Boussinesq modal equations were developed and solved to describe solar and stellar convection. An explanation was developed for the lack of penetration of large-scale convective motions into the observable solar atmosphere through the discovery of buoyancy braking near the top of a supposedly unstable layer. Observations of motions in the solar atmosphere led to the discovery of a new scale of solar motion, the so-called mesogranulation. A technique was developed to use changes in the solar five-minute oscillations as a probe of internal solar structure. Using this technique, large-scale, subatmospheric convective eddies were discovered.

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