A New Stellar Atmosphere Grid-in 3D

Details A New Stellar Atmosphere Grid-in 3D A New Stellar Atmosphere Grid-in 3D

Nov 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..948..141t&link_type=abstract

UNSOLVED PROBLEMS IN STELLAR PHYSICS: A Conference in Honor of Douglas Gough. AIP Conference Proceedings, Volume 948, pp. 141-1

Physics

7

Stellar Atmospheres, Radiative Transfer, Opacity And Line Formation, Thermodynamic Processes, Conduction, Convection, Equations Of State, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages

Scientific paper

The main limitation of atmosphere models of late-type stars is the, at best, sketchy treatment of convection. Because the top of the outer convection zone of such stars is located in the photosphere, convection has a large effect on both the atmospheric structure and the emergent spectrum. I present the first results from a grid of 3D, non-grey, radiation-coupled, convection simulations for a range of atmospheric parameters. These results include calibration of the mixing-length, T-τ relations and granulation spectra.

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