Collision Processes Involving Highly Ionized Atoms

Abstract

The cross section of FeXIV for inelastic collisions resulting in the transition from the ²P_3/2 to the ²P_1/2 state of the ion, for electron collision ionization, and for radiative recombination of FeXIV and MgX are calculated by wave mechanical methods. A method is given whereby radiative recombination cross sections of all highly ionized atoms may be calculated. Where possible the cross sections obtained are compared with corresponding results given by the classical quantum theory. Finally, the wave mechanical values are used to verify the general conclusion, obtained using classical quantum values of the cross sections, that the agitation temperature of the coronal electrons is about 10⁶ °K.