Ni XXV - VERSION 8.0


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

  1. ni_25.elvlc (energy levels)
  2. contains the energy levels (in cm-1). It includes both experimental and theoretical values of the levels energies.

     
    %filename: ni_25.elvlc
    %observed energy levels (1-5,9,10): Edlen, B. 1983, Physica Scripta, 28, 51
    %observed energy levels (6-8): Edlen, B., 1985, Physica Scripta, 32, 86
    %observed energy levels (n=3): Boiko, V.A., Pikuz, S.A., Safronova, U.I., & Faenov, A.Ya. 1977, J.Phys.B, 10, 1253 and Edlen, B. 1983, Physica Scripta, 28, 51
    %observed energy levels (14,16,22,32,41): Boiko, V.A., Pikuz, S.A., Safronova, U.I., & Faenov, A.Ya. 1977, J.Phys.B, 10, 1253 and Edlen, B., 1985, Physica Scripta, 32, 86
    %Theoretical energy levels: 27-conf model from Landi & Bhatia 2009, ADNDT, 95, 547 
    % produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %  
    % E. Landi - April 2008
     
    

  3. ni_25.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: ni_25.wgfa
    %observed energy levels (1-5,9,10): Edlen, B. 1983, Physica Scripta, 28, 51
    %observed energy levels (6-8): Edlen, B., 1985, Physica Scripta, 32, 86
    %observed energy levels (n=3): Boiko, V.A., Pikuz, S.A., Safronova, U.I., & Faenov, A.Ya. 1977, J.Phys.B, 10, 1253 and Edlen, B. 1983, Physica Scripta, 28, 51
    %observed energy levels (14,16,22,32,41): Boiko, V.A., Pikuz, S.A., Safronova, U.I., & Faenov, A.Ya. 1977, J.Phys.B, 10, 1253 and Edlen, B., 1985, Physica Scripta, 32, 86
    %Theoretical energy levels: 27-conf model from Landi & Bhatia 2008, ADNDT, 95, 547
    %A values and oscillator strengths: 27-conf model from Landi & Bhatia 2008, ADNDT, 95, 547
    % produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    %  E. Landi - April 2008
    

  5. ni_25.scups (electron collision data)
  6. contains the effective electron collision strengths scaled according to the rules formulated by Burgess and Tully (1992).

     
    %filename: ni_25.splups
    %oscillator strengths: Landi & Bhatia 2009, ADNDT, 95, 547
    %effective collision strengths (n=2, 1-13,15, 3-18, 5-12,20): Chidichimo, M.C., Badnell, N.R., & Tully, J.A. 2003, A&A, 401, 1177
    %collision strengths n=3 transitions: Landi & Bhatia 2009, ADNDT, 95, 547
    %Comment: effective collision strengths were provided in the 6.3 < Log T  < 8.3 temperature range.
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    %  Enrico Landi - March 2009
    
    

  7. ni_25.psplups (proton collision data)
  8. contains the spline fits to the scaled proton collision strengths.

     
    
    %filename: ni_25.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 5e6 to 7.5e8 K.
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    % Peter Young  24-Oct-00
    


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

    ni_25_table.html (html table)

    Page created by Giulio Del Zanna on Fri Sep 18 13:29:19 2015