Nonequilibrium ionization due to thermal diffusion and mass flows

Details Nonequilibrium ionization due to thermal diffusion and mass flows Nonequilibrium ionization due to thermal diffusion and mass flows

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...241..402r&link_type=abstract

Astrophysical Journal, Part 1, vol. 241, Oct. 1, 1980, p. 402-408.

Physics

8

Atmospheric Ionization, Mass Flow, Nonequilibrium Ionization, Solar Atmosphere, Thermal Diffusion, Diffusion Coefficient, Extreme Ultraviolet Radiation, Far Ultraviolet Radiation, Solar Physics, Solar Spectra, Temperature Gradients

Scientific paper

Recent calculations of diffusion coefficients are used in the continuity equation to compute ion populations of carbon in the solar transition region. Thermal diffusion causes strong departures from ionization equilibrium in the region where the temperature gradient is steepest. Mass-conserving flows are also included in our calculations. These dominate over thermal diffusion depending on the magnitude of the flows and also lead to departures from ionization equilibrium. These results have important implications for the interpretation of EUV line emission.

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