The effects of deviation from LTE in the solar Fraunhofer spectrum - Oxygen

Details The effects of deviation from LTE in the solar Fraunhofer spectrum - Oxygen The effects of deviation from LTE in the solar Fraunhofer spectrum - Oxygen

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987kfnt....3...36s&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 3, Nov.-Dec. 1987, p. 36-45. In Russian.

Physics

6

Line Spectra, Lyman Beta Radiation, Solar Spectra, Solar Temperature, Thermodynamic Equilibrium, Abundance, Atmospheric Models, Oxygen, Temperature Distribution

Scientific paper

The formation of neutral O I 130.2-130.6, 135.6-135.9, 777.2-777.5, 844.6 nm lines observable in quiet regions on the solar disk is considered with allowance for deviation from LTE. The non-LTE equivalent width of the triplet 772.2-775.5 nm is highly sensitive to temperature, which may ultimately lead to variations of the flux and equivalent width of the triplet in stellar spectra. The influence of LTE deviations on the characteristics of the O I line profiles considered is greater than the errors of precision solar observations and must be accounted for in their interpretation.

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