Forbiddenline excitation data for certain coronal lines.
Abstract
Some new data pertinent to forbidden transitions for coronal lines of S XII, Ca XIII, K XI, Mn XIII, Fe XIV, Co XV, Ni XVI, N XV, Cr IX, Fe X, and Ni XII are presented. We include additional calculations of collision strengths for a number of ions and then set up and solve the equations of statistical equilibrium in the limiting approximations in which contributions to level population by cascade from higher levels are neglected. We then calculate volume emissivities per ion as a function of density and temperature.
 Publication:

The Astrophysical Journal Supplement Series
 Pub Date:
 December 1974
 DOI:
 10.1086/190329
 Bibcode:
 1974ApJS...28..465C
 Keywords:

 Atomic Excitations;
 Forbidden Transitions;
 Line Spectra;
 Solar Corona;
 Solar Spectra;
 Transition Probabilities;
 Atomic Collisions;
 Density Distribution;
 Electron Density (Concentration);
 Electron Energy;
 Electron Transitions;
 Emission Spectra;
 Ion Density (Concentration);
 Tables (Data);
 Astrophysics