The CHIANTI database has the following primary ASCII files for this ion:
contains the energy levels (in cm-1). It includes both experimental and theoretical values of the levels energies.
Observed energies: Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2012). NIST Atomic Spectra Database (ver. 5.0), [Online]. Available: http://physics.nist.gov/asd [2013, May 3]. National Institute of Standards and Technology, Gaithersburg, MD. The experimental energies of some levels were revised in Del Zanna, G., Storey, P.J., Badnell, N.R., 2014, A&A, 566, A123 DOI: http://dx.doi.org/10.1051/0004-6361/201423823 Theoretical energies: Del Zanna, G., Storey, P.J., Badnell, N.R., 2014, A&A, 566, A123 DOI: http://dx.doi.org/10.1051/0004-6361/201423823 Produced for the CHIANTI database v.8 by G. Del Zanna June 2014 -1
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: Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2012). NIST Atomic Spectra Database (ver. 5.0), [Online]. Available: http://physics.nist.gov/asd [2013, May 3]. National Institute of Standards and Technology, Gaithersburg, MD. The experimental energies of some levels were revised in Del Zanna, G., Storey, P.J., Badnell, N.R., 2014, A&A, 566, A123 DOI: http://dx.doi.org/10.1051/0004-6361/201423823 Theoretical energies, gf and A-values: Del Zanna, G., Storey, P.J., Badnell, N.R., 2014, A&A, 566, A123 DOI: http://dx.doi.org/10.1051/0004-6361/201423823 Produced for the CHIANTI database v.8 by G. Del Zanna June 2014 %File processed with wgfa_tidy by pryoung on 6-Mar-2019 %File processed with wgfa_tidy by pryoung on 31-May-2023
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 June 2014 DOI: http://dx.doi.org/10.1051/0004-6361/201423823 Del Zanna, G., Storey, P.J., Badnell, N.R., 2014, A&A, 566, A123 Data from
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