Effects of Granulation upon Larger-Scale Convection

Details Effects of Granulation upon Larger-Scale Convection Effects of Granulation upon Larger-Scale Convection

2012-01-23

arxiv.org/abs/1201.4809v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

4 pages, 1 figure, to appear in Third Hinode Science Meeting proceedings

Scientific paper

We examine the role of small-scale granulation in helping to drive supergranulation and even larger scales of convection. The granulation is modeled as localized cooling events introduced at the upper boundary of a 3-D simulation of compressible convection in a rotating spherical shell segment. With a sufficient number of stochastic cooling events compared to uniform cooling, we find that supergranular scales are realized, along with a differential rotation that becomes increasingly solar-like.

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