Theoretical study of the Stark width and shift parameters of Pb iii lines: predictions and regularities

Alonso‐Medina, A.; Colón, C.; Zanon, A. Miraval

doi:10.1111/j.1365-2966.2008.12717.x

Cited by 6 publications

(3 citation statements)

References 25 publications

(36 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a previous paper (Colón & Alonso‐Medina 2000), the most obvious effect, the relative energy position of 6s6d 1 D 2 level, was explained. The current calculations, although supposing a relative improvement (table 1 of Alonso‐Medina, Colón & Zanón 2008) of these early calculations, do not present remarkable effects on the relative position of the energy levels.…”

Section: Discussion and Resultscontrasting

confidence: 49%

Core-polarization effects, oscillator strengths and radiative lifetimes of levels in Pb iii

Alonso‐Medina¹,

Colón²,

Zanon³

2009

Monthly Notices of the Royal Astronomical Society

Self Cite

View full text Add to dashboard Cite

Transition probabilities and oscillator strengths of 382 lines with astrophysical interest arising from 5d96s26p, 5d106snl, 5d106s2, 5d106p2, 5d106p7s and 5d106p6d configurations and some levels radiative lifetimes of Pb iii have been calculated. These values were obtained in intermediate coupling (IC) and using relativistic Hartree–Fock calculations including core‐polarization effects. We use for the IC calculations the standard method of least‐square fitting from experimental energy levels by means of Cowan computer code. The inclusion in these calculations of the 5d106p7s and 5d106p6d configurations has facilitated us a complete assignment of the levels of energy in the Pb iii. Transition probabilities, oscillator strengths and radiative lifetimes obtained are generally in good agreement with the experimental data.

show abstract

Section: Discussion and Resultscontrasting

confidence: 49%

Core-polarization effects, oscillator strengths and radiative lifetimes of levels in Pb iii

Alonso‐Medina¹,

Colón²,

Zanon³

2009

Monthly Notices of the Royal Astronomical Society

Self Cite

View full text Add to dashboard Cite

show abstract

“…A most detailed description of this method can be seen in others works of these authors [4][5][6][7]. 'Safronova 2004 Ambacher et al 1988 " Pinnington et al 1991 Several of the values calculated in this work are the first presented in the bibliography.…”

Section: Theoretical Calculations and Resultsmentioning

confidence: 96%

Level Energies, Oscillator Strengths and Lifetimes for Transitions in Pb IV

Colón¹,

Alonso‐Medina²,

Zanon³

et al. 2008

AIP Conference Proceedings

Self Cite

View full text Add to dashboard Cite

Oscillator strengths for several lines of astrophysical interest arising from some configurations and some levels radiative lifetimes of Pb IV have been calculated. These values were obtained in intermediate coupling (IC) and using ab initio relativistic Hartree-Fock calculations. We use for the IC calculations the standard method of least square fitting of experimental energy levels by means of computer codes from Cowan. Transition Probabilities and oscillator strengths obtained, although in general agreement with the rare experimental data, do present some noticeable discrepancies that are studied in the text.

show abstract

“…Our calculation procedure is the same as presented by us in previous works [8,[12][13][14][15]. In our procedure, we present Stark broadening parameters for 80 spectral lines of Sn II [13] and for 122 lines of Pb III [14].…”

Section: Methods Of Calculationmentioning

confidence: 99%

Theoretical Stark widths and shifts of spectral lines of 2p⁵nf and 2p⁵5g configurations of Mg III

Moreno-Díaz¹,

Alonso‐Medina²,

Colón³

2014

Phys. Scr.

View full text Add to dashboard Cite

In this paper, we report theoretical Stark widths and shifts calculated using the Griem semi empirical approach, which corresponds to 111 spectral lines of Mg III. The values of these Stark broadening parameters of spectral lines that arise from levels of 2p 5 nf and 2p 5 5g configurations of Mg III are presented in the literature for the first time. The aim of this work is to provide values to estímate the electron density of plasma Mg III in astrophysics and industrial applications. The data are presented for the temperatures T= 0.5-10.0 (10 4 K) and for an electron density of 10 17 cm-3. The matrix of elements used in these calculations has been determined from 23 configurations of Mg III: 2s 2 2p 6 , 2s 2 2p 5 3p, 2s 2 2p 5 4p, 2s 2 2p 5 4f and 2s 2 2p 5 5f for the even parity and 2s 2 2p 5 ns (n = 3-6), 2s 2 2p 5 nd (n = 3-9), 2s 2 2p 5 5g and 2s2p 6 np (n = 3-8) for the odd parity. For the intermediate coupling calculations, we use the standard method of least square fitting from experimental energy levels by means of Cowan's computer code. Lines with wavelengths of 134.6460, 135.2800, 189.0380, 190.0043, 192.8424, 408.2939 and 409.4375 nm have high probabilities and also have high values of broadening. Therefore, these lines can be used in sorne applications. A common regularity for the Stark width of the 189.038 nm spectral line of Mg III is discussed.

show abstract

Theoretical study of the Stark width and shift parameters of Pb iii lines: predictions and regularities

Cited by 6 publications

References 25 publications

Core-polarization effects, oscillator strengths and radiative lifetimes of levels in Pb iii

Core-polarization effects, oscillator strengths and radiative lifetimes of levels in Pb iii

Level Energies, Oscillator Strengths and Lifetimes for Transitions in Pb IV

Theoretical Stark widths and shifts of spectral lines of 2p⁵nf and 2p⁵5g configurations of Mg III

Contact Info

Product

Resources

About

Theoretical study of the Stark width and shift parameters of Pb iii lines: predictions and regularities

Cited by 6 publications

References 25 publications

Core-polarization effects, oscillator strengths and radiative lifetimes of levels in Pb iii

Core-polarization effects, oscillator strengths and radiative lifetimes of levels in Pb iii

Level Energies, Oscillator Strengths and Lifetimes for Transitions in Pb IV

Theoretical Stark widths and shifts of spectral lines of 2p5nf and 2p55g configurations of Mg III

Contact Info

Product

Resources

About

Theoretical Stark widths and shifts of spectral lines of 2p⁵nf and 2p⁵5g configurations of Mg III