S VII - VERSION 8.0


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

  1. s_7.elvlc (energy levels)
  2. contains the energy levels (in cm-1). It includes both experimental and theoretical values of the levels energies.

     
     
    Observed energies: 
    Mostly from 
    Jupen C. and Engstrom L., 2002, Physica Scripta, 66, 140
    
    Those for levels 6,69, 93, 113, 143,147,177 
    are from Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2012). 
    NIST Atomic Spectra Database (ver. 5.0), [Online]. Available: http://physics.nist.gov/
      
    Theoretical energies: 
     Liang, G. Y. & Badnell, N. R. 2010, A&A, 518, A64
     doi = {10.1051/0004-6361/201014170}
     adsurl = {http://adsabs.harvard.edu/abs/2010A%26A...518A..64L}
     
     -1
     
    

  3. s_7.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.

     
    
    Observed energies: 
    Mostly from 
    Jupen C. and Engstrom L., 2002, Physica Scripta, 66, 140
    
    Those for levels 6,69, 93, 113, 143,147,177 
    are from Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2012). 
    NIST Atomic Spectra Database (ver. 5.0), [Online]. Available: http://physics.nist.gov/
    
    Theoretical energies, gf and A-values: 
     Liang, G. Y. & Badnell, N. R. 2010, A&A, 518, A64
     doi = {10.1051/0004-6361/201014170}
     adsurl = {http://adsabs.harvard.edu/abs/2010A%26A...518A..64L}
      
    Note: only transitions with a branching ratio above 10^-5 
    have been retained.
    
    Transitions within the first 27 levels (2p6, 2p5 3l, l=s,p,d):
    Jonsson P. et al., Atomic Data and Nuclear Data Tables, 2014, 100, 1
    adsurl = {http://adsabs.harvard.edu/abs/2014ADNDT.100....1J}
    
     Produced for the CHIANTI database v.8 by G. Del Zanna 9 Mar 2015
     
    

  5. s_7.scups (electron collision data)
  6. contains the effective electron collision strengths scaled according to the rules formulated by Burgess and Tully (1992).

     
    
    
    Data from Liang, G. Y. & Badnell, N. R. 2010, A&A, 518, A64
    doi = {10.1051/0004-6361/201014170}
    adsurl = {http://adsabs.harvard.edu/abs/2010A%26A...518A..64L}
    
    
    Produced for the CHIANTI database v.8 by Giulio Del Zanna  Nov 2013
    
    
    

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

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

    s_7_table.html (html table)

    Page created by Giulio Del Zanna on Fri Sep 18 13:29:39 2015