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Volume 417, Number 3, April III 2004
Page(s) 1173 - 1181
Section Atomic, molecular and nuclear data
DOI http://dx.doi.org/10.1051/0004-6361:20034174

A&A 417, 1173-1181 (2004)
DOI: 10.1051/0004-6361:20034174

Dielectronic recombination data for dynamic finite-density plasmas

IV. The carbon isoelectronic sequence
O. Zatsarinny1, T. W. Gorczyca1, K. T. Korista1, N. R. Badnell2 and D. W. Savin3

1  Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008, USA
    e-mail: oleg.zatsarinny;korista@wmich.edu
2  Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
3  Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027, USA
    e-mail: savin@astro.columbia.edu

(Received 8 August 2003 / Accepted 18 December 2003 )

Dielectronic recombination (DR) and radiative recombination (RR) data for carbon-like ions forming nitrogen-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. 2003). Total DR and RR rate coefficients are presented and the results discussed for N + to Zn 24+, as well as Kr 30+, Mo 36+, Cd 42+, and Xe 48+. We find that the $2\rightarrow 2$ (no change in the principal quantum number of the core electron) low-temperature DR does not scale smoothly with nuclear charge  Z due to resonances straddling the ionization limit, thereby making explicit calculations for each ion necessary. The 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.

Key words: atomic data -- atomic processes -- plasmas

Offprint request: T. W. Gorczyca, gorczyca@wmich.edu

© ESO 2004