Si XII d - VERSION 8.0


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

  1. si_12d.elvlc (energy levels)
  2. contains the energy levels (in cm-1). It includes both experimental and theoretical values of the levels energies.

     
    %filename: si_12d.elvlc
    %observed energy levels (1-24):  Martin, W.C., Zalubas, R., 1983, J.Phys.Chem.Ref.Data, 12, 323
    %theoretical energy levels (1-24): Zhang, H.L., Sampson, D.H., Fontes, C.J., ADNDT, 44, 31
    %theoretical energy levels (25-85): Vainshtein, L.A., Safronova, U.I., 1978, ADNDT, 21, 49
       and 1980, ADNDT, 25, 311 - updated by U.I. Safronova, 1999
    %energy levels (86-212): Phillips, K.J.H., Dubau, J., Sylwester, J., Sylwester, B., 2006, ApJ, 638, 1154
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    % E. Landi - Oct 2004
     
    

  3. si_12d.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: si_12d.wgfa
    %observed energy levels: Martin, W.C., Zalubas, R., 1983, J.Phys.Chem.Ref.Data, 12, 323
    %theoretical energy levels: Zhang, H.L., Sampson, D.H., Fontes, C.J., 1990, ADNDT, 44, 31
    %oscillator strengths: Zhang, H.L., Sampson, D.H., Fontes, C.J., 1990, ADNDT, 44, 31
    %oscillator strengths: Martin, I., Karwowski, J., Diercksen, G.H.F., Barrientos, C., 1993, A&AS, 100, 595
    %energies, A values and autoionization rates (up to level 85): Vainshtein, L.A., Safronova, U.I., 1978, ADNDT, 21, 49
       and 1980, ADNDT, 25, 311 - updated by U.I. Safronova, 1999
    %energies, A values and autoionization rates (86-212): Phillips, K.J.H., Dubau, J., Sylwester, J., Sylwester, B., 2006, ApJ, 638, 1154
    %comment: theoretical energies have been used as experimental values for the dielectronic transitions
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    % E. Landi - Oct 2004
    

  5. si_12d.scups (electron collision data)
  6. contains the effective electron collision strengths scaled according to the rules formulated by Burgess and Tully (1992).

     
    %filename: si_12d.splups
    %Effective collision strengths and autoionization rates (levels 1-85): Vainshtein, L.A.,
    Safronova, U.I., 1978, ADNDT, 21, 49 and 1980, ADNDT, 25, 311 - updated by U.I. Safronova, 1999
    %Effective collision strengths and autoionization rates (levels 86-212): (86-212): Phillips, K.J.H., Dubau, J., Sylwester, J., Sylwester, B., 2006, ApJ, 638, 1154
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    %  E. Landi - Oct 2004
    
    


    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 13:29:42 2015