Ni XVII - VERSION 8.0


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

  1. ni_17.elvlc (energy levels)
  2. contains the energy levels (in cm-1). It includes both experimental and theoretical values of the levels energies.

     
    %filename: ni_17.elvlc
    %Observed energy levels (1-27,30-33): Churilov, S.S., Kononov, E. Ya., Ryabtsev, A.N., & Zayikin, Yu.F. 1985, Phys. Scr., 32, 501
    %Observed energy levels (28,29,34): Average between Churilov et al. 1985 and Redfors, A., 1988, Phys. Scr., 38, 702
    %Observed energy levels (45,53,78,81,86): Fawcett, B.C., Cowan, R.D., Hayes, R.W., 1972, J. Phys. B, 5, 2143
    %Observed energy levels (36,41-44,50-52,118-121,130-133): Feldman, U., Katz, L., Behring, W., Cohen, L. 1971, J.Opt.Soc.Am., 61, 91
    %Observed energy levels (37): Acton et al. 1985, ApJ, 291, 865
    %Theoretical energy levels: Bhatia & Landi 2011, ADNDT, 97, 189
    %Comment: transition energies from Fawcett et al. 1972 and Feldman et al. 1971 have been combined with n=3 energies from Churilov et al. 1985 to provide level energies.
    %Comment: level 37 has been given the energy by identifying the transition given by Acton et al. at 55.16 A 
         with the strong 5-35 transition. The line proposed by Acton et al is much weaker and should not be observable.
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    % Enrico Landi - Sep 2009
     
    

  3. ni_17.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_17.wgfa
    %Observed energy levels (1-27,30-33): Churilov, S.S., Kononov, E. Ya., Ryabtsev, A.N., & Zayikin, Yu.F. 1985, Phys. Scr., 32, 501
    %Observed energy levels (28,29,34): Average between Churilov et al. 1985 and Redfors, A., 1988, Phys. Scr., 38, 702
    %Observed energy levels (45,53,78,81,86): Fawcett, B.C., Cowan, R.D., Hayes, R.W., 1972, J. Phys. B, 5, 2143
    %Observed energy levels (36,41-44,50-52,118-121,130-133): Feldman, U., Katz, L., Behring, W., Cohen, L. 1971, J.Opt.Soc.Am., 61, 91
    %Observed energy levels (37): Acton et al. 1985, ApJ, 291, 865
    %Theoretical energy levels: Bhatia & Landi 2011, ADNDT, 97, 189
    %A values and oscillator strengths: Bhatia & Landi 2011, ADNDT, 97, 189
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    % Enrico Landi - Jul 2009
    

  5. ni_17.scups (electron collision data)
  6. contains the effective electron collision strengths scaled according to the rules formulated by Burgess and Tully (1992).

     
    %filename: ni_17.splups
    %weighted oscillator strengths: Bhatia & Landi, 2011, ADNDT, 97, 189
    %Collision strengths: Bhatia & Landi, 2011, ADNDT, 97, 189
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    % Enrico Landi - Jul 2007
    
    

  7. (proton collisional data) Not available in this VERSION.

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

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