Perturbation theory Z-expansion method for autoionisation states of many-electron atomic systems. III. Dielectronic satellite spectra for highly charged ions in a hot dense plasma

Abstract

For pt.II see ibid., vol.13, p.869 (1980). In previous papers by Safronova and Urnov this method was developed based on the relativistic expansion into perturbation theory series in powers of 1/Z (Z is the nuclear charge) suitable for the calculation of atomic characteristics for autoionisation states of many-electron ions. The calculations were carried out for states of the type 1s2sn2pm for ions with a number of electrons N=4-9 and spectroscopic symbol z=6-30 (z=Z-N+1). The comparison with results obtained in the framework of other approaches (Hartree-Fock and Thomas-Fermi) was also given. The authors present the results of calculations for the spectra of dielectronic satellites (DS) to the He-like ion resonance line excited in the ions of Be-, B-, C-, N- and O-like isoelectronic sequences in dense high-temperature plasmas; the case of low-density (coronal) plasma will be considered in a following paper.