Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apjs...40..793j&link_type=abstract
Astrophysical Journal Supplement Series, vol. 40, Aug. 1979, p. 793-813.
Astronomy and Astrophysics
Astrophysics
17
Dense Plasmas, Ionization, Magnetohydrodynamic Flow, Thermodynamic Equilibrium, Astrophysics, Carbon, Graphs (Charts), Ion Temperature, Iron, Magnesium, Nitrogen Ions, Oxygen Ions, Silicon, Steady Flow, Stellar Atmospheres, Sulfur, Temperature Gradients
Scientific paper
Conditions of steady flow through a temperature gradient are determined for which the assumption of ionization equilibrium remains approximately valid. A simplified solution for ionization stage densities is obtained for the set of mass conservation equations under conditions of steady flow through a temperature gradient for the following elements and ionization stages: C II through C VII, N III through N VIII, O I through O IX, Ne I through Ne XI, Mg II through Mg XII, Si I through Si XIV, S I through S X, and Fe VI through Fe XVII. The results obtained show that some ions may reflect conditions appropriate to ionization equilibrium, but ionization equilibrium may be a very poor assumption for other ions.
Holzer Thomas Edward
Joselyn Jo Ann
Munro Richard Harding
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