CHIANTI

An Atomic Database for Spectroscopic Diagnostics of Astrophysical Plasmas.

Home Download Help User Guides Direct access News - History Applications
Team Line Lists Links ADS Citations Acknowledging CHIANTI CHIANTI papers CHIANTI and other codes

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

Cr XIII - VERSION 6.0

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

  1. cr_13.elvlc (energy levels)

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

     
%Experimental energy levels: Martin,W.C., Sugar,J., Musgrove,A., Dalton,G.R., 1995,
     NIST Database for Atomic Spectroscopy, Version 1.0, NIST Standard Reference Database 61
%theoretical energy levels: Christensen etal, Ph.Rev.A, 34, 4704, 1986
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E. Landi 2000

  2. cr_13.wgfa (radiative data)

    3. 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: cr_13.wgfa
%experimental energy levels: Martin,W.C., Sugar,J., Musgrove,A., Dalton,G.R., 1995,
     NIST Database for Atomic Spectroscopy, Version 1.0, NIST Standard Reference Database 61
%A values: Christensen et al, Ph.Rev.A, 4704, 34, 1986
%A values (1-4, 3-4): Calculated using SUPERSTRUCTURE and the same atomic model adopted
by Christensen, Norcross, Pradhan, Ph.Rev.A, 34, 4704, 1986
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E. Landi 2000

  3. cr_13.splups (electron collision data)

    4. 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: cr_13.splups
%oscillator strengths: Christensen etal, 1986, Ph.Rev.A, 4704, 34
%collision strengths: Christensen etal, 1986, Ph.Rev.A, 4704, 34
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E. Landi 1996

  4. cr_13.splups (proton collisional data) Not available in this VERSION.

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

    cr_13_table.html (html table)


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