Dielectronic Satellite Spectra for Highly - Charged Helium - like Ions -- II IMPROVED CALCULATIONS

Abstract

Earlier calculations on the intensities of dielectronic satellite spectra for helium-like ion resonance lines (Gabriel) have now been revised. The revision is based upon new and improved calculations for the rates of autoionization of the levels responsible, and of their production rate by direct inner-shell excitation. The new theory makes some significant alterations in the interpretation of the intensities of observed lines from solar and laboratory plasmas, in particular in relation to the extent to which the ionization departs from the steady-state distribution. Recent improved observations of solar active regions and flares and high temperature laboratory plasmas are compared with the calculated spectra.