The CHIANTI database has the following primary ASCII files for this ion:

ar_12.elvlc (energy levels)

contains the energy levels (in cm-1). It includes both experimental and theoretical values of the levels energies.

 
%filename: ar_12.elvlc
%Observed energy levels (1 - 15): Edlen, 1984, Phys.Scripta, 30, 135
%Observed energy levels (n=3): NIST Database for Atomic Spectroscopy, Version 2.0, 1999, NIST Standard Reference Database # 78
%Theoretical energy levels: Eissner, Landi & Bhatia 2005, ADNDT, 89, 195
%comment: theoretical energy levels come from the 24-configuration calculation in Eissner, Landi & Bhatia (2005)
% produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
% 
% Enrico Landi - Oct 2003
 

ar_12.wgfa (radiative data)

contains wavelengths, gf and A values of the transitions. The wavelengths are based on the experimental energy levels and should be the best available. Wavelengths calculated from the theoretical energies are of an indeterminate accuracy and their values are presented as negative values of the calculated wavelength.

 
%filename: ar_12.wgfa
%Observed energy levels (1 - 15): Edlen, 1984, Phys.Scripta, 30, 135
%Observed energy levels (n=3): NIST Database for Atomic Spectroscopy, Version 2.0, 1999, NIST Standard Reference Database # 78
%Theoretical energy levels: Eissner, Landi & Bhatia 2005, ADNDT, 89, 195
%A and gf values: Eissner, Landi & Bhatia 2005, ADNDT, 89, 195
%comment: theoretical energy levels and all radiative data come from the 24-configuration calculation in Eissner et al (2005)
% produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% Enrico Landi - Oct 2003

 K. Dere  -  minimum branching ratio =   1.00e-05  :  2017 December 06
%File processed with wgfa_tidy by pryoung on  6-Mar-2019

ar_12.scups (electron collision data)

contains the effective electron collision strengths scaled according to the rules formulated by Burgess and Tully (1992).

 
% E. Landi - Oct 2003
%
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    (2005) for consistency with the collisional calculation
%comment: oscillator strengths have been taken from the 6-configuration model of Eissner et al.
%Collision strengths: Eissner, Landi & Bhatia 2005, ADNDT, 89, 195
%Oscillator strengths: Eissner, Landi & Bhatia 2005, ADNDT, 89, 195
%filename: ar_12.splups

(proton collisional data) Not available in this VERSION.

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The html tables below contain the radiative data of the brightest lines sorted in wavelength

ar_12_table1.html (html table -- 30.9365 -- 776.9800 A)

ar_12_table2.html (html table -- 1018.7240 -- 1839.5880 A)

Page created by Giulio Del Zanna on Wed Jun 8 16:01:08 2022