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Coronal lines and the importance of deep-core-valence correlation in Ag-like ions

Grumer, Jon LU ; Zhao, Ruifeng; Brage, Tomas LU ; Li, Wenxian; Huldt, Sven LU ; Hutton, Roger and Zou, Yaming (2014) In Physical Review A (Atomic, Molecular and Optical Physics) 89(6).
Abstract
We report on large-scale and critically evaluated ab initio multiconfiguration Dirac-Hartree-Fock calculations of the wavelength and transition rate of the "coronal," M1 transition 4f F-2(5/2)o-F-2(7/2)o in Ag-like ions. The transition between these two fine-structure levels, which makes up the ground term for Z >= 62 in the isoelectronic sequence, has recently been observed in Yb23+ and W27+, where the latter could be of great importance for fusion plasma diagnostics. We present values for all members of the sequence between Z = 50 and 94, which are supported by excellent agreement with values from recent experiments. The importance of including core-valence correlation with the n = 3 shell in the theoretical model is emphasized. The... (More)
We report on large-scale and critically evaluated ab initio multiconfiguration Dirac-Hartree-Fock calculations of the wavelength and transition rate of the "coronal," M1 transition 4f F-2(5/2)o-F-2(7/2)o in Ag-like ions. The transition between these two fine-structure levels, which makes up the ground term for Z >= 62 in the isoelectronic sequence, has recently been observed in Yb23+ and W27+, where the latter could be of great importance for fusion plasma diagnostics. We present values for all members of the sequence between Z = 50 and 94, which are supported by excellent agreement with values from recent experiments. The importance of including core-valence correlation with the n = 3 shell in the theoretical model is emphasized. The results show close-to-spectroscopic accuracy for these forbidden lines. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A (Atomic, Molecular and Optical Physics)
volume
89
issue
6
publisher
American Physical Society (APS)
external identifiers
  • wos:000339047700007
  • scopus:84903555173
ISSN
1050-2947
DOI
10.1103/PhysRevA.89.062511
language
English
LU publication?
yes
id
4519c675-e49c-4655-bacc-bdc9a77379b1 (old id 4595845)
date added to LUP
2014-09-05 12:40:45
date last changed
2017-04-23 03:19:43
@article{4519c675-e49c-4655-bacc-bdc9a77379b1,
  abstract     = {We report on large-scale and critically evaluated ab initio multiconfiguration Dirac-Hartree-Fock calculations of the wavelength and transition rate of the "coronal," M1 transition 4f F-2(5/2)o-F-2(7/2)o in Ag-like ions. The transition between these two fine-structure levels, which makes up the ground term for Z >= 62 in the isoelectronic sequence, has recently been observed in Yb23+ and W27+, where the latter could be of great importance for fusion plasma diagnostics. We present values for all members of the sequence between Z = 50 and 94, which are supported by excellent agreement with values from recent experiments. The importance of including core-valence correlation with the n = 3 shell in the theoretical model is emphasized. The results show close-to-spectroscopic accuracy for these forbidden lines.},
  articleno    = {062511},
  author       = {Grumer, Jon and Zhao, Ruifeng and Brage, Tomas and Li, Wenxian and Huldt, Sven and Hutton, Roger and Zou, Yaming},
  issn         = {1050-2947},
  language     = {eng},
  number       = {6},
  publisher    = {American Physical Society (APS)},
  series       = {Physical Review A (Atomic, Molecular and Optical Physics)},
  title        = {Coronal lines and the importance of deep-core-valence correlation in Ag-like ions},
  url          = {http://dx.doi.org/10.1103/PhysRevA.89.062511},
  volume       = {89},
  year         = {2014},
}