Characterizing Convection in Stellar Atmospheres

Details Characterizing Convection in Stellar Atmospheres Characterizing Convection in Stellar Atmospheres

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011jphcs.271a2080t&link_type=abstract

Journal of Physics: Conference Series, Volume 271, Issue 1, pp. 012080 (2011).

Physics

1

Scientific paper

We perform 3D radiative hydrodynamic simulations to study the properties of convection in the superadiabatic layer of stars. The simulations show differences in both the stratification and turbulent quantities for different types of stars. We extract turbulent pressure and eddy sizes, as well as the T-τ relation for different stars and find that they are sensitive to the energy flux and gravity. We also show that contrary to what is usually assumed in the field of stellar atmospheres, the structure and gas dynamics of simulations of turbulent atmospheres cannot be parameterized with Teff and log(g) alone.

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