A. G. Trigueiros, A. J. Mania, M. Gallardo, and J. G. Reyna Almandos, "Atomic transitions for the Ar vii spectrum in the vacuum ultraviolet," J. Opt. Soc. Am. B 14, 2463-2468 (1997)
Two different spectroscopy light sources are used to observe the spectrum of six-times-ionized argon, Ar vii, in the vacuum ultraviolet range, 300–1100 Å. Fifty-eight transitions are identified as combinations between levels of the
and configurations. For 44 of these transitions the classification is new. Twenty-nine levels are determined that belong to these configurations, where 14 of these are new. The energy parameters are obtained with Hartree–Fock relativistic calculations. The energy levels of the configurations are interpreted by fitting the theoretical energy expressions to the experimental levels with the least-squares approach. Isoelectronic comparisons along the Mg i sequence are used to support the experimental results.
A. G. Trigueiros, F. Callegari, N. Mansur, G. H. Cavalcanti, A. J. Mania, M. Gallardo, and J. G. Reyna Almandos J. Opt. Soc. Am. B 18(11) 1718-1721 (2001)
M. Wang, A. Arnesen, R. Hallin, F. Heijkenskjöld, M. O. Larsson, A. Wännström, A. G. Trigueiros, and A. V. Loginov J. Opt. Soc. Am. B 14(12) 3277-3281 (1997)
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
The intensities of the lines are visual estimates of plate blackening. Abbreviations for line characteristics: u, line profile is asymmetric; bl, line is blended.
Ref. 1.
Ref. 8.
Energy level values from the least-squares fitting calculation.
Percentages lower than 3% are omitted.
New level determined in this work.
Predicted value from the least-squares fitting calculation.
Parameters used in the least-squares fitting calculation for odd-parity configurations. The Hartree–Fock relativistic parameters are compared with the fitting values. The standard deviations for the parameters and the ratio between fitted and the Hartree–Fock values are also shown. The standard deviation for energy adjustment was
These parameters were kept fixed under the least-squares fitting calculation.
Blended line.
Same as in Table 3, but for odd-parity configurations. Standard deviation is for the least-squares adjustment.
Parameters were kept fixed in the least-squares fitting calculation.
The intensities of the lines are visual estimates of plate blackening. Abbreviations for line characteristics: u, line profile is asymmetric; bl, line is blended.
Ref. 1.
Ref. 8.
Energy level values from the least-squares fitting calculation.
Percentages lower than 3% are omitted.
New level determined in this work.
Predicted value from the least-squares fitting calculation.
Parameters used in the least-squares fitting calculation for odd-parity configurations. The Hartree–Fock relativistic parameters are compared with the fitting values. The standard deviations for the parameters and the ratio between fitted and the Hartree–Fock values are also shown. The standard deviation for energy adjustment was
These parameters were kept fixed under the least-squares fitting calculation.
Blended line.
Same as in Table 3, but for odd-parity configurations. Standard deviation is for the least-squares adjustment.
Parameters were kept fixed in the least-squares fitting calculation.