Fine-structure splitting calculation in the Ar III ion: comparison of perturbative (Breit-Pauli) and non-perturbative (MCDF-EAL) predictions

Forbidden Transitions in the Ground State Configuration of Doubly Ionized Argon

“…3 P 0 , and 3 P 2 -3 P 1 are in good agreement with [6,14,22,37]. The line strengths are also in agreement with the values of NIST.…”

“…Argon ion lines are observed in solar and astrophysical plasmas as well as in the laboratory [6]. The argon spectral lines are important in determining chemical abundances of elements and for estimation of the radiative transfer through stellar plasmas [7].…”

“…Mendoza and Zeippen calculated radiative transition probabilities for the forbidden lines in 2 Journal of Atomic and Molecular Physics the ground configuration of all the members of the sulfur isoelectronic sequence [24]. Fine structure splitting in Ar III was calculated using the R-matrix method by Stancalie et al [6]. Träbert [7].…”

Valence and L-shell photoionization of Cl-like argon using R-matrix techniques

“…Energies and assignments for the lowest 14 levels of the Ar iii system presented in eV. Stancalie et al (2012) and Munoz Burgos et al (2009) are theoretical R-matrix results for electron impact excitation calculations, and the NIST results are observational data taken from Saloman (2010). The remaining results are the present works summarized in Table 1.…”

Extended Analysis of Ar III and Ar IV

“…In the last few decades [13][14][15][16][17][18], there has been intense research on determining and compiling the transition probabilities of ionized argon. In the work of Burger et al [19], transition probabilities were presented for 38 Ar III and 14 Ar IV spectral lines from the wavelength interval 2400-3080 Å.…”