Ar XV - VERSION 10.0.2


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

  1. ar_15.elvlc (energy levels)
  2. contains the energy levels (in cm-1). It includes both experimental and theoretical values of the levels energies.

     
     
       Theoretical energies:
    Fernandez-Menchero, Del Zanna and Badnell, A&A, 2014, 566, A104
    doi = {10.1051/0004-6361/201423864}
    
    Note: only the bound levels up to n=5 have been retained
    and indexing has been modified.
    
    Observed energies:
    NIST Atomic Spectra Database, (ver. 5.7.1), [Online].
    https://physics.nist.gov/PhysRefData/ASD/levels_form.html
    
    
     Produced as part of the 'CHIANTI' atomic data base collaboration by
    Giulio Del Zanna, May 2020
    
     -1
     
    

  3. ar_15.wgfa (radiative data)
  4. 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.

     
    gf-values, A-values and theoretical energies:
    Fernandez-Menchero, Del Zanna and Badnell, A&A, 2014, 566, A104
    doi = {10.1051/0004-6361/201423864}
    Only transition probabilities with a branching ratio
    greater than 10^(-5) have been retained.
    
    
    gf-values, A-values for the n=2,3 (lowest 20 levels):
    MBPT calculations by  Wang, K. et al., 2015, ApJS,  218, 16
    doi = {10.1088/0067-0049/218/2/16}
    
    Note: only the bound levels up to n=5 have been retained
    and indexing has been changed.
    
    
    Observed energies:
    NIST Atomic Spectra Database, (ver. 5.7.1), [Online].
    https://physics.nist.gov/PhysRefData/ASD/levels_form.html
    
    Produced as part of the 'CHIANTI' atomic data base collaboration by
    Giulio Del Zanna, May 2020
    
    
    

  5. ar_15.scups (electron collision data)
  6. contains the effective electron collision strengths scaled according to the rules formulated by Burgess and Tully (1992).

     
    
    
    Giulio Del Zanna, May 2020
    Produced as part of the 'CHIANTI' atomic data base collaboration by
    
    indexing changed.
    Note: only the bound levels up to n=5 have been retained and
    
    doi = {10.1051/0004-6361/201423864}
    Fernandez-Menchero, Del Zanna and Badnell, A&A, 2014, 566, A104
    oscillator strengths and effective collision strengths:
    
    
    

  7. ar_15.psplups (proton collision data)
  8. contains the spline fits to the scaled proton collision strengths.

     
    
    %file: ar_15.psplups
    %rates: Ryans R.S.I., Foster-Woods V.J, Copeland F., Keenan F.P., Matthews A., Reid R.H.G., 1998, ADNDT 70, 179-229
    %energies: Bhatia A.K., Feldman U., Seely J.F., 1986, ADNDT 35, 449-472
    %comment: Fits valid for temperatures 8e5 to 1.75e8 K.
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    % Peter Young  24-Oct-00
    


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

    Page created by Giulio Del Zanna on Wed Jun 8 16:01:09 2022