Large-scale multiconfiguration Dirac-Hartree-Fock calculations for astrophysics : C-like ions from O iii to Mg vii

Li, J. Q. and Zhang, C. Y. and Zanna, G. Del and Jönsson, P. and Godefroid, M. and Gaigalas, G. and Rynkun, P. and Radžiūtė, L. and Wang, K. and Si, R. and Chen, C. Y. (2022) Large-scale multiconfiguration Dirac-Hartree-Fock calculations for astrophysics : C-like ions from O iii to Mg vii. Astrophysical Journal Supplement, 260 (2). 50. ISSN 0067-0049 (https://doi.org/10.3847/1538-4365/ac63ae)

[thumbnail of Li-AJS-2022-Large-scale-multiconfiguration-Dirac-Hartree-Fock-calculations-for-astrophysics]
Preview
 Text. Filename: Li_AJS_2022_Large_scale_multiconfiguration_Dirac_Hartree_Fock_calculations_for_astrophysics.pdf
Final Published Version
License: Creative Commons Attribution 4.0 logo
Download (994kB)| Preview

Abstract

Large-scale multiconfiguration Dirac–Hartree–Fock calculations are provided for the n ≤ 5 states in C-like ions from O iii to Mg vii. Electron correlation effects are accounted for by using large configuration state function expansions, built from sets of orbitals with principal quantum numbers n ≤ 10. An accurate and complete data set of excitation energies, wavelengths, radiative transition parameters, and lifetimes is offered for the 156 (196, 215, 272, 318) lowest states of the 2s22p2, 2s2p3, 2p4, 2s22p3s, 2s22p3p, 2s22p3d, 2s2p23s, 2s2p23p, 2s2p23d, 2p33s, 2p33p, 2p33d, 2s22p4s, 2s22p4p, 2s22p4d, 2s22p4f, 2s2p24s, 2s2p24p, 2s2p24d, 2s2p24f, 2s22p5s, 2s22p5p, 2s22p5d, 2s22p5f, and 2s22p5g configurations in O iii (F iv, Ne v, Na vi, Mg vii). By comparing available experimental wavelengths with the MCDHF results, the previous line identifications for the n = 5, 4, 3 → n = 2 transitions of Na vi in the X-ray and EUV wavelength range are revised. For several previous identifications discrepancies are found, and tentative new (or revised) identifications are proposed. A consistent atomic data set including both energy and transition data with spectroscopic accuracy is provided for the lowest hundreds of states for C-like ions from O iii to Mg vii.

  • Item type:Article
    ID code:82581
    Dates:
    Date
    Event
    23 June 2022
    Published
    26 March 2022
    Accepted
    22 November 2021
    Submitted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:05 Oct 2022 10:46
    Last modified:09 Apr 2024 03:34
    URI:https://strathprints.strath.ac.uk/id/eprint/82581
CORE (COnnecting REpositories)