The effects of diffusion in the solar transition region

Details The effects of diffusion in the solar transition region The effects of diffusion in the solar transition region

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.190..287t&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 190, Jan. 1980, p. 287-297.

Physics

6

Chromosphere, Diffusion, Solar Atmosphere, Solar Corona, Solar Physics, Transition Layers, Abundance, Electron Density (Concentration), Oxygen Ions, Solar Wind Velocity

Scientific paper

The paper discusses the effect of diffusion on ionic fractional abundances and relative abundances of elements to hydrogen in the solar chromosphere-corona transition region. A variable solar wind velocity is used in the calculations and an efficient numerical method for solving the diffusion equations is given. It is found that departures of ionic fractional abundances away from their temperature positions in local ionization equilibrium can be significant but are model dependent; the solar models reproduce various EUV resonance line intensities, and the importance of concentration diffusion is discussed.

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