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Large-scale Multiconfiguration Dirac-Hartree-Fock and Relativistic Configuration Interaction Calculations of Transition Data for B-like S XII

Wang, Kai (author)
Hebei Key Lab of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China; Shanghai EBIT Lab, Key Laboratory of Nuclear Physics and Ion-beam Application, Institute of Modern Physics, Department of Nuclear Science and Technology, Fudan University, Shanghai, 200433, China; Chimie Quantique et Photophysique, CP160/09, Université Libre de Bruxelles, Av. F.D. Roosevelt 50, Brussels, B-1050, Belgium
Song, Chang Xian (author)
Hebei Key Lab of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China
Jönsson, Per (author)
Malmö universitet,Institutionen för materialvetenskap och tillämpad matematik (MTM)
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Ekman, Jörgen (author)
Malmö universitet,Institutionen för materialvetenskap och tillämpad matematik (MTM)
Godefroid, Michel (author)
Chimie Quantique et Photophysique, CP160/09, Université Libre de Bruxelles, Av. F.D. Roosevelt 50, Brussels, B-1050, Belgium
Zhang, Chun Yu (author)
Shanghai EBIT Lab, Key Laboratory of Nuclear Physics and Ion-beam Application, Institute of Modern Physics, Department of Nuclear Science and Technology, Fudan University, Shanghai, 200433, China
Si, Ran (author)
Department of Computer Science, University of British Columbia, Vancouver, V6T 1Z4, Canada
Zhao, Xiao Hui (author)
Hebei Key Lab of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China
Chen, Chong Yang (author)
Shanghai EBIT Lab, Key Laboratory of Nuclear Physics and Ion-beam Application, Institute of Modern Physics, Department of Nuclear Science and Technology, Fudan University, Shanghai, 200433, China
Yan, Jun (author)
Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China; Center for Applied Physics and Technology, Peking University, Beijing, 100871, China; Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai, 200240, China
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Hebei Key Lab of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China; Shanghai EBIT Lab, Key Laboratory of Nuclear Physics and Ion-beam Application, Institute of Modern Physics, Department of Nuclear Science and Technology, Fudan University, Shanghai, 200433, China; Chimie Quantique et Photophysique, CP160/09, Université Libre de Bruxelles, Av F.D. Roosevelt 50, Brussels, B-1050, Belgium Hebei Key Lab of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China (creator_code:org_t)
2018-09-07
2018
English.
In: Astrophysical Journal. - : American Astronomical Society. - 0004-637X .- 1538-4357. ; 864:2
Related links:
https://urn.kb.se/re...
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https://doi.org/10.3...
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  • Journal article (peer-reviewed)
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  • Excitation energies and lifetimes for the 213 lowest states of the n <= 5 configurations in B-like S XII are calculated using highly correlated wave functions, optimized with the fully relativistic multiconfiguration Dirac-Hartree-Fock method. Multipole transition rates and associated radiative data (line strengths and oscillator strengths) for transitions connecting these levels are also reported. The theoretical excitation energies are systematically compared with the NIST Atomic Spectra Database in which misidentifications are pointed out. After eliminating the latter, a mean energy difference with the standard deviation between computed and observed energies of 12 +/- 341 cm(-1) is obtained for the n >= 3 high-lying states. This level of accuracy confirms that elaborate ab initio calculations can assist in the identification of new emission lines in the solar and other astrophysical spectra. The present work provides atomic data of high accuracy for an ion of astrophysical interest, B-like S XII, for which experimental data are scarce.

Keyword

atomic data
atomic processes

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art (subject category)

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