The influence of autoionization accompanied by excitation on the dielectronic recombination and the ionization equilibrium of silicon ions

Details The influence of autoionization accompanied by excitation on the dielectronic recombination and the ionization equilibrium of silicon ions The influence of autoionization accompanied by excitation on the dielectronic recombination and the ionization equilibrium of silicon ions

Jul 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...215..690j&link_type=abstract

Astrophysical Journal, Part 1, vol. 215, July 15, 1977, p. 690-699. Research supported by the University of Rochester, U.S. Nav

Other

68

Atomic Excitations, Autoionization, Electron-Ion Recombination, Recombination Coefficient, Silicon, Solar Corona, Electron Transitions, Plasma Radiation, Radiative Recombination, Radiative Transfer, Rarefied Plasmas

Scientific paper

The dielectronic recombination rate coefficients have been calculated for the various ionization stages of silicon. Account has been taken of all stabilizing radiative transitions and all autoionization processes which involve a single-electron electric-dipole transition of the recombining ion core. For certain ions the dielectronic recombination rates, although still larger than the direct radiative recombination rates, are found to be substantially reduced when account is taken of the effects of a previously neglected autoionization process in which the excited recombining ion core undergoes a delta n = 0 transition to a lower excited state. The temperatures at which these ions have their maximum abundance in corona equilibrium are significantly reduced when use is made of the new dielectronic recombination rates. Calculations are also presented for the total rates of radiative energy loss from isothermal steady-state plasmas due to the line and continuum emission of silicon ions.

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