Analysis of the solar magnesium I spectrum

Details Analysis of the solar magnesium I spectrum Analysis of the solar magnesium I spectrum

Dec 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apj...194..733a&link_type=abstract

Astrophysical Journal, vol. 194, Dec. 15, 1974, pt. 1, p. 733-741.

Astronomy and Astrophysics

Astrophysics

39

Atmospheric Models, Atomic Spectra, Magnesium, Solar Atmosphere, Solar Spectra, Astronomical Models, Atmospheric Turbulence, Metal Ions, Radiative Transfer, Statistical Distributions, Thermodynamic Equilibrium, Velocity Distribution

Scientific paper

Without assuming local thermodynamic equilibrium (LTE), we simultaneously solve the equations of statistical equilibrium and radiative transfer for a model Mg I atom that includes the lines 4571, 5172 (b2), and 2852 A, which we then compare with observations. From this comparison we determine by trial and error an optimum model of run with height of electron temperature, electron density, and total hydrogen density, and microturbulent velocity in the solar atmosphere up to approximately h = 1000 km. In addition, we show that the assumption of LTE for the 4571 A source function is valid to a high degree of precision.

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