Mg VI - VERSION 8.0


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

  1. mg_6.elvlc (energy levels)
  2. contains the energy levels (in cm-1). It includes both experimental and theoretical values of the levels energies.

     
    %filename: mg_6.elvlc
    %Observed energy levels (1-15): Edlen, 1984, Phys.Scripta, 30, 135
    %Observed energy levels (16-72): J.R. Fuhr, D.E. Kelleher, W.C.  Martin, A. Musgrove, 
          J. Sugar, W.L. Wiese, G.R. Dalton, R.A. Dragoset, P.J. Mohr, K. Olsen, J. Reader, 
          E.B. Saloman, C.J. Sansonetti, G. Wiersma, "NIST Atomic Spectra Database" Ver. 2.0, 
          March 1999, NIST Physical Reference Data
    %Theoretical energy levels: Landi & Bhatia 2007, ADNDT, 93, 1
    %comment: theoretical energies come from the 24-configuration calculation of Landi & Bhatia
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    % 
    % E. Landi - Nov 2004
     
    

  3. mg_6.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: mg_6.wgfa
    %Observed energy levels (1-15): Edlen, 1984, Phys.Scripta, 30, 135
    %Observed energy levels (16-72): J.R. Fuhr, D.E. Kelleher, W.C.  Martin, A. Musgrove,
       J. Sugar, W.L. Wiese, G.R. Dalton, R.A. Dragoset, P.J. Mohr, K. Olsen, J. Reader,
       E.B. Saloman, C.J. Sansonetti, G. Wiersma, "NIST Atomic Spectra Database" Ver. 2.0,
       March 1999, NIST Physical Reference Data
    %Theoretical energy levels: Landi & Bhatia 2007, ADNDT, 93, 1
    %A values and oscillator strengths: Landi & Bhatia 2007, ADNDT, 93, 1
    %comment: theoretical energies, oscillator strengths and A values come from the 24-configuration calculation of Landi & Bhatia
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    % 
    % E. Landi - Nov 2004
    

  5. mg_6.scups (electron collision data)
  6. contains the effective electron collision strengths scaled according to the rules formulated by Burgess and Tully (1992).

     
    %filename: mg_6.splups
    %Oscillator strengths: Landi & Bhatia 2007, ADNDT, 93, 1
    %Effective collision strengths levels 1-22 and 36: Ramsbottom & Bell 1997, A&ASS, 125, 543
    %Collision strengths all other transitions: Landi & Bhatia 2007, ADNDT, 93, 1
    %comment: the level numbering of Ramsbottom & Bell has been adapted to the Landi & Bhatia one
    %comment: oscillator strengths come from the 6-configuration calculation of Landi & Bhatia, for
    consistency with the collision strengths calculation
    %comment: effective collision strengths are provided by Ramsbottom & Bell in the range 5.0 < log T < 6.1
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    % E. Landi - Oct 2004
    
    

  7. mg_6.psplups (proton collision data)
  8. contains the spline fits to the scaled proton collision strengths.

     
    
    %filename: mg_6.psplups
    %rates: Bhatia, A.K. & Young, P.R. 1998, ADNDT 68, 219
    %energies: Observed values from CHIANTI mg_6.elvlc file.
    %comment: Fitted using single_temp.pro with scalx=0.9.
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    % Peter Young  17-Dec-2001
    


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

    mg_6_table.html (html table)

    Page created by Giulio Del Zanna on Fri Sep 18 13:28:24 2015