Accession Number:

ADA155214

Title:

Solar Convection.

Descriptive Note:

Final rept. 1 Mar 77-30 Nov 83,

Corporate Author:

COLORADO UNIV AT BOULDER DEPT OF ASTRO-GEOPHYSICS

Personal Author(s):

Report Date:

1984-04-30

Pagination or Media Count:

37.0

Abstract:

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.

Subject Categories:

  • Astrophysics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE