Fe VIII - VERSION 10.0.2


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

  1. fe_8.elvlc (energy levels)
  2. contains the energy levels (in cm-1). It includes both experimental and theoretical values of the levels energies.

     
     
     Observed energies:
    Del Zanna 2009, A&A, 508, 513
    and NIST Database for Atomic Spectroscopy, Version 2.0, NIST Standard Reference Database 61
    
    Theoretical energy levels (up to 518, n=3,4,5):
     Del Zanna, G. and Badnell, N.R., 2014,  A&A, 570, A56
    Theoretical energy levels (n=6,7):
     O'Dwyer, B., Del Zanna, G., Badnell, N.R., Mason, H. E.,Storey, P.J., 2012, A&A, 537, A22 
    
    
    Produced for the CHIANTI database v.8 by G. Del Zanna Oct  2014
    
     -1
     
    

  3. fe_8.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:  fe_8.wgfa
    
    Observed energies:
    Del Zanna 2009, A&A, 508, 513
    and NIST Database for Atomic Spectroscopy, Version 2.0, NIST Standard Reference Database 61
    
    Theoretical energy levels, gf and A-values (up to 518, n=3,4,5):
    Del Zanna, G. and Badnell, N.R., 2014,  A&A, 570, A56
    Theoretical energy levels, gf and A-values (n=6,7):
    O'Dwyer, B., Del Zanna, G., Badnell, N.R., Mason, H. E.,Storey, P.J., 2012, A&A, 537, A22
    
    
    Produced for the CHIANTI database v.8 by G. Del Zanna Oct  2014
    Modified on Tue Jun 13  2017: fixed indexing problems for the  levels 511-518
    
     K. Dere  -  minimum branching ratio =   1.00e-05
         2017 December 06
    %File processed with wgfa_tidy by pryoung on  6-Mar-2019
    %File processed with wgfa_tidy by pryoung on  6-Mar-2019
    

  5. fe_8.scups (electron collision data)
  6. contains the effective electron collision strengths scaled according to the rules formulated by Burgess and Tully (1992).

     
    
    
    Produced for the CHIANTI database v.8 by G. Del Zanna Oct  2014
    
    
     O'Dwyer, B., Del Zanna, G., Badnell, N.R., Mason, H. E.,Storey, P.J., 2012, A&A, 537, A22 
     Effective collision strengths (levels n=6,7):
    
     Effective collision strengths (up to level 518, n=3,4,5): Del Zanna, G. and Badnell, N.R., 2014,  A&A,570, A56 
    
    

  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 Wed Jun 8 16:06:34 2022