CHIANTI

An Atomic Database for Spectroscopic Diagnostics of Astrophysical Plasmas.

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Naval Research Laboratory (USA) - Rutherford Appleton Laboratory (UK)
University of Cambridge (UK) - George Mason University (USA) - Universita' degli Studi di Firenze (Italy)

Fe XVII - VERSION 4.2


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

  1. fe_17.elvlc (energy levels)
  2. contains the energy levels in cm^(-1) It includes both experimental and theoretical values of the levels energies.

     
    %energy levels: Shirai,T., Sugar,J., Musgrove,A., Wiese,W.L., 2000, J.Phys.Chem.Ref.Data, Monograph 8
    %energy levels 30, 32: Bhatia, A.K., Doschek, G.A., 1992, ADNDT, 52, 1
    %energy levels 28, 37: Kelly, R. L., 1987, J. Phys. Chem. Ref. Data 16, Suppl. 1
    %theoretical energy levels (n=3): Bhatia, A.K., Doschek, G.A., 1992, ADNDT, 52, 1
    %theoretical energy levels (n=4): Zhang, H.L., Sampson, D.H., 1989, ADNDT, 43, 1
    % Note: some energy levels from the NIST database, version 2.0, have been renumbered
            in order to match the identification given by Bhatia and Doschek
            and their theoretical energy levels. In particular, the following changes
            have been made:
                           NIST  -->  CHIANTI 
    			
    			12   -->     9
                            13   -->    12
                             9   -->    13
    			25   -->    21
    			
    % produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    % 
    % Enrico Landi 2000
     
    

  3. fe_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.

     
    %energy levels: Shirai,T., Sugar,J., Musgrove,A., Wiese,W.L., 2000, J.Phys.Chem.Ref.Data, Monograph 8
    %energy levels 30, 32: Bhatia, A.K., Doschek, G.A., 1992, ADNDT, 52, 1
    %energy levels 28, 37: Kelly, R. L., 1987, J. Phys. Chem. Ref. Data 16, Suppl. 1
    %theoretical energy levels (n=3): Bhatia, A.K., Doschek, G.A., 1992, ADNDT, 52, 1
    %theoretical energy levels (n=4): Zhang, H.L., Sampson, D.H., 1989, ADNDT, 43, 1
    %A values (n=3): Bhatia, A.K., Doschek, G.A., 1992, ADNDT, 52, 1
    %oscillator strengths (n=3): Bhatia, A.K., Doschek, G.A., 1992, ADNDT, 52, 1
    % A values and oscillator strengths (n=4): E.Landi, unpublished SSTRUCT calculations.
    %comment: The SSTRUCT calculation has been performed using the configurations of the fe_17.elvlc file
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration CHIANTI
    %
    % E.Landi 2000
    

  5. fe_17.splups (electron collision data)
  6. contains the spline fits to the electron collision strengths scaled according the rules formulated by Burgess and Tully (1992). Accurate replication of the temperature averaged collision strength over a wide range of temperatures can be accomplished with the data in this file.

     
    
    %filename: fe_17.splups
    %oscillator strengths (n=3): Bhatia, A.K., Doschek, G.A., 1992, ADNDT, 52, 1
    %oscillator strengths (n=4): E.Landi, unpublished SSTRUCT calculations (see fe_17.wgfa for details)
    %collision strengths (n=3): Bhatia and Doschek, 1992, ADNDT, 52, 1
    %collision strengths (n=4): Zhang, H.L., Sampson, D.H., 1989, ADNDT, 43, 1
    % produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    % Enrico Landi 2000
    

  7. fe_17.splups (proton collisional data) Not available in this VERSION.

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

    fe_17_table.html (html table)


    Last revised by G. Del Zanna on 4-Sep-2009