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42. Energies, wavelengths, lifetimes, E1, M1, E2, and M2 transitions rates for the sulfur isoelectronic sequence Fe XI, Nb XXVI-In XXXIV

Author

Wang, K., Li, S., Si, R., Chen, C.Y., Yan, J., Chen, Z.B., Dang, W., and Zhao, X.H.

Subjects
Isotope analysis -- Methods, Physics
Abstract

Energies, wavelengths, lifetimes, oscillator strengths, electric dipole (E1), electric quadrupole (E2), magnetic dipole (M1), and magnetic quadrupole (M2) transition rates among the 42 fine structure levels belonging to the 3[s.sup.2]3[p.sup.4], 3[s.sup.2]3[p.sup.3]3d, and 3s3[p.sup.5] configurations for S-like Fe and S-like ions with 41 [less than or equal to] Z [less than or equal to] 49 are calculated using the fully relativistic multiconfiguration Dirac-Fock (MCDF) method. In the calculations, contributions from correlations within the n = 6 complex, Breit interaction, and quantum electrodynamics effects are included. Detailed comparisons are made between the present results and the available experimental and other theoretical data. We found that our calculated energy levels generally agree within [less than or equal to] 0.5% with the experimentally compiled results, and the transition rates agree within [less than or equal to] 12% with other theoretical results for a majority of the transitions. These accurate theoretical data should be beneficial in fusion plasma research and astrophysical applications. Key words: S-like ions, energies, MCDF method, transition rates. Nous utilisons la methode completement relativiste multi-configurations de Dirac-Fock (MCDF) pour calculer les energies, les longueurs d'onde, les temps de vie, les forces d'oscillateur, les taux de transition dipole electrique (E1), quadripole electrique (E2), dipole magnetique (M1) et quadripole magnetique (M2) entre les 42 niveaux de structure fine qui appartiennent aux configurations 3[s.sup.2]3[p.sup.4], 3[s.sup.2]3[p.sup.3]3d et 3s3[p.sup.5] pour les ions du Fe de type S et de type S pour 41 [less than or equal to] Z [less than or equal to] 49. Les calculs incluent les contributions des correlations dans n = 6, l'interaction de Breit et les effets d'electrodynamique quantique. Nous procedons a une comparaison detaillee entre nos resultats et les resultats experimentaux disponibles et d'autres resultats theoriques. Nous trouvons que nos niveaux d'energie agreent a [less than or equal to] 0.5% avec les resultats experimentaux compiles et nos taux de transition a [less than or equal to] 12% des autres resultats experimentaux pour la majorite des transitions. Ces donnees theoriques precises devraient etre utiles en recherche sur les plasmas de fusion et en astrophysique. [Traduit par la Redaction] Mots-cles : ions de type S, energies, methode MCDF, taux de transition, temps de vie., 1. Introduction Accurate atomic data of atoms and ions are important in astrophysics and plasma diagnostics [1, 2]. The S-like ions are of particular interest. On one hand, the complex [...]

Published
2017
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