Volume 645, January 2021
|Number of page(s)||10|
|Section||Atomic, molecular, and nuclear data|
|Published online||28 January 2021|
Spectral properties and polarizabilities for fluorine-like ions with Z = 20–30★
School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710119, PR China
Accepted: 16 November 2020
Aims. The primary motivation of this paper is to provide accurate atomic properties of F-like ions with Z = 20−30, including energy levels, line strengths, static dipole polarizabilities, and lifetimes. In addition, a detailed analysis is also carried out to explore the convergence and uncertainties of our results.
Methods. Large-scale B-spline relativistic configuration interaction calculations are carried out to generate the atomic properties of F-like ions. The radial parts of one-electron Dirac orbitals are obtained from the relativistic self-consistent field procedure in which the Breit Interaction and QED corrections (vacuum polarization and self-energy terms) are also included. A numerical method, called Emu CI, is adopted to decrease the size of CI matrix significantly without loss of much accuracy.
Results. Energy levels and line strengths for electric-dipole (E1), electric-quadrupole (E2), and magnetic-dipole (M1) transitions are provided for the 250 lowest levels of each system, showing a good agreement with available theoretical and experimental information. The static dipole polarizabilities and lifetimes for the ten lowest states are also reported. A statement for the convergence and uncertainties of our results is presented.
Key words: atomic data / atomic processes / relativistic processes / methods: numerical
Full Tables 1 and A.1, and the transition line strengths of all the ions are only available in electronic format at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (22.214.171.124) or via http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/645/A136
© ESO 2021
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