Dielectronic recombination data for dynamic finite-density plasmas. II. The oxygen isoelectronic sequence

Details Dielectronic recombination data for dynamic finite-density plasmas. II. The oxygen isoelectronic sequence Dielectronic recombination data for dynamic finite-density plasmas. II. The oxygen isoelectronic sequence

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26a...412..587z&link_type=abstract

Astronomy and Astrophysics, v.412, p.587-595 (2003)

Astronomy and Astrophysics

Astrophysics

37

Atomic Data, Atomic Processes, Plasmas

Scientific paper

Dielectronic recombination (DR) and radiative recombination (RR) data for oxygen-like ions forming fluorine-like ions have been calculated as part of the assembly of a level-resolved DR and RR database necessary for modelling of dynamic finite-density plasmas (Badnell et al. \cite{Badnell03}). Total DR and RR rate coefficients for F+ to Zn22+ are presented and the results discussed. By comparison between perturbative and R-matrix results, we find that RR/DR interference effects are negligible even for the lowest-charged F+ member. We also find that the 2 -> 2 low-temperature DR (no change in the principal quantum number of the core electrons) does not scale smoothly with nuclear charge Z due to resonances straddling the ionization limit, thereby making explicit calculations for each ion necessary. These RR and DR data are suitable for modelling of solar and cosmic plasmas under conditions of collisional ionization equilibrium, photoionization equilibrium, and non-equilibrium ionization.

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