Line blanketing without local thermodynamic equilibrium. II - A solar-type model in radiative equilibrium

Details Line blanketing without local thermodynamic equilibrium. II - A solar-type model in radiative equilibrium Line blanketing without local thermodynamic equilibrium. II - A solar-type model in radiative equilibrium

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...339..558a&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 339, April 1, 1989, p. 558-578. Research supported by the High Altitude Obs

Astronomy and Astrophysics

Astrophysics

160

Line Spectra, Radiative Transfer, Solar Atmosphere, Thermodynamic Equilibrium, Carbon Monoxide, Opacity, Scattering Cross Sections, Solar Flux, Statistical Analysis

Scientific paper

A statistical solution for the problem of non-LTE radiative transfer in the millions of atomic transitions responsible for line blanketing is proposed which takes into account the influence of scattering on the atomic populations. A multifrequency/multigray algorithm is used to analyze the thermal equilibrium. Although CO is shown to cool the upper atmosphere to a boundary temperature of 2640 K, the molecule has little influence in the region of the solar temperature minimum.

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