The energy balance of granulation

Details The energy balance of granulation The energy balance of granulation

Aug 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...207..981m&link_type=abstract

Astrophysical Journal, vol. 207, Aug. 1, 1976, pt. 1, p. 981-988.

Astronomy and Astrophysics

Astrophysics

15

Energy Transfer, Photosphere, Solar Granulation, Stellar Models, Vertical Motion, Convective Heat Transfer, Cooling, Opacity, Radiation Distribution, Temperature Gradients, Turbulent Heat Transfer, Velocity Distribution

Scientific paper

We construct columnar models of the solar granulation based on the balance of convective energy carried by a vertical velocity field and radiation. A specified velocity field and perturbation of the radiative flux determines the variation of temperature fluctuations with height. For a nominal model we compute the variation of contrast with wavelength and heliocentric angle. We conclude that the observed temperature fluctuations cannot be produced by the observed velocities alone, but require either a modified radiation field or turbulent energy transport, or both.

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