Solar granulation in quiet and active regions

Details Solar granulation in quiet and active regions Solar granulation in quiet and active regions

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990lastr.104..345r&link_type=abstract

L'Astronomie (ISSN 0004-6302), vol. 104, Nov.-Dec. 1990, p. 345-350. In French.

Astronomy and Astrophysics

Astronomy

Convection Currents, Convective Heat Transfer, Solar Activity, Solar Granulation, Magnetohydrodynamic Turbulence, Mixing Length Flow Theory, Solar Cycles, Solar Oscillations

Scientific paper

The current understanding of solar granulation in quiet and active regions is examined. Recent observations are discussed in relation to current theory. The origin of granulation is considered with reference to turbulent convection processes which concentrate and disperse the magnetic field in the photosphere. It is concluded that, despite recent hypotheses on the turbulent orgin of small granules (fractal analysis), convective penetration into stable layers of the photosphere is still the most likely scenario.

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