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Dielectronic recombination-rate coefficients to excited states of Be-like oxygen and dielectronic satellite lines
- Source :
- Canadian Journal of Physics. 80:1525-1542
- Publication Year :
- 2002
- Publisher :
- Canadian Science Publishing, 2002.
-
Abstract
- We calculate energy levels, radiative transition probabilities, and autoionization rates for Be-like oxygen (O4+) including 1s2 2lnl' (n = 28, l [Formula: see text] n 1) and 1s23l' nl (n = 36, l [Formula: see text] n 1) states by the multiconfigurational HartreeFock method (Cowan code) and the perturbation theory Z-expansion method (MZ code). The state selective dielectronic recombination-rate coefficients to excited states of Be-like oxygen are obtained, which are useful for modeling O V spectral lines in a recombining plasma. Configuration mixing plays an important role for the principal quantum number, n, distribution of the dielectronic recombination-rate coefficients for 2snl (n [Formula: see text] 5) levels at low electron temperature. The orbital angular momentum quantum number, l, distribution of the rate coefficients shows a peak at l = 4. The total dielectronic recombination-rate coefficient is derived as a function of electron temperature. The dielectronic satellite lines are also obtained. PACS Nos.: 34.80Lx, 32.80Dz, 32.30Jc, 31.10+z
Details
- ISSN :
- 12086045 and 00084204
- Volume :
- 80
- Database :
- OpenAIRE
- Journal :
- Canadian Journal of Physics
- Accession number :
- edsair.doi...........3db2a7c855afa8126ee2880ccfe53799
- Full Text :
- https://doi.org/10.1139/p02-079