Na IV - VERSION 8.0


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

  1. na_4.elvlc (energy levels)
  2. contains the energy levels (in cm-1). It includes both experimental and theoretical values of the levels energies.

     
    %filename: na_4.elvlc
    %experimental energy levels: Edlen, B., 1983, Phys. Scripta, 28, 51
    %theoretical energy levels 2s2p5, 2p6 conf.: Butler, K., Zeippen, C.J., 1994, AASS, 108, 1
    %theoretical energy levels 2s22p4 conf.: Galavis, M.E., Mendoza, C., Zeippen, C.J., 1997, AASS, 123, 159
    % produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    % 
    % E. Landi - May 2004
     
    

  3. na_4.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.

     
    %filename: na_4.wgfa
    %experimental energy levels: Edlen, B., 1983, Phys. Scripta, 28, 51
    %A values and oscillator strengths: E. Landi, 2005, A&A, 434, 365
    % produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    % 
    % E. Landi - May 2004
    

  5. na_4.scups (electron collision data)
  6. contains the effective electron collision strengths scaled according to the rules formulated by Burgess and Tully (1992).

     
    %filename: na_4.splups
    %oscillator strengths: interpolated using Ne III, Mg V, Si VII, S IX, Ar XI
    %effective collision strengths ground conf.: Butler, K., Zeippen, C.J., 1994, AASS, 108, 1
    %effective collision strengths 2s2p5, 2p6 conf.: interpolated using Ne III, Mg V, Si VII, S IX, Ar XI
    %comment: effective collision strengths were provided in the temperature range 3.0 < Log T < 5.0
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    % Enrico Landi 1997
    
    

  7. na_4.psplups (proton collision data)
  8. contains the spline fits to the scaled proton collision strengths.

     
    
    %filename: na_4.psplups
    %rates: Landman, D.A., ApJ 240, 709, 1980
    %energies: Observed energies from CHIANTI .elvlc file
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    % Peter Young  8-Jun-2001
    


    The html table below contains the radiative data of the brightest lines sorted in wavelength

    na_4_table.html (html table)

    Page created by Giulio Del Zanna on Fri Sep 18 13:28:40 2015