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.
Theoretical energies: Mao, J. , Badnell, N. R., Del Zanna, G., 2020, A&A, 634, A7 DOI: 10.1051/0004-6361/201936931 Note: only the 177 bound levels have been retained. Observed energies: NIST Atomic Spectra Database, (ver. 5.7.1), [Online]. https://physics.nist.gov/PhysRefData/ASD/levels_form.html Note: for the lower levels, the approximate values given by NIST have been retained. For the higher ones, they have not been included because they are obviously offset. Produced as part of the 'CHIANTI' atomic data base collaboration by Giulio Del Zanna, July 2020 -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.
gf-values, A-values and theoretical energies: Mao, J. , Badnell, N. R., Del Zanna, G., 2020, A&A, 634, A7 DOI: 10.1051/0004-6361/201936931 Note: only the 177 bound levels have been retained. Only transition probabilities with a branching ratio greater than 10^(-5) have been retained. gf-values, A-values for the ground configuration 2s2 2p2 and the 2s 2p3 are from the MCHF calculation by G. Tachiev and C. Froese Fischer, (energy adjusted), 2001, Can. J. Phys. 79,955 http://adsabs.harvard.edu/abs/2001CaJPh..79..955T Observed energies: NIST Atomic Spectra Database, (ver. 5.7.1), [Online]. https://physics.nist.gov/PhysRefData/ASD/levels_form.html Note: for the lower levels, the approximate values given by NIST have been retained. For the higher ones, they have not been included because they are obviously offset. Produced as part of the 'CHIANTI' atomic data base collaboration by Giulio Del Zanna, July 2020 %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).
Giulio Del Zanna, Aug 2020 Produced as part of the 'CHIANTI' atomic data base collaboration by at the highest temperatures. The Mao+ rates are only 5-10% higher than the Storey et al. values Note: DOI: 10.1093/mnras/stu777 Storey, P. J.; Sochi, Taha; Badnell, N. R., MNRAS, 2014, 441,4,3028 are from The rates for the ground configuration (levels 1-5) at lower temperatures Note: only the 177 bound levels have been retained. DOI: 10.1051/0004-6361/201936931 Mao, J. , Badnell, N. R., Del Zanna, G., 2020, A&A, 634, A7 oscillator strengths and effective collision strengths:
contains the spline fits to the scaled proton collision strengths.
%file: o_3.psplups %rates: Ryans R.S.I., Foster-Woods V.J, Keenan F.P., Reid R.H.G., 1999, ADNDT 73, 1-42 %energies: Wiese W.L., Fuhr J.R., Deters T.M., 1996, J. Phys. Chem. Ref. Data, Monograph 7 %comment: Fits valid for temperatures 1.5e4 to 2e6 K. %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % Peter Young 15-May-2001
Page created by Giulio Del Zanna on Wed Apr 16 17:44:07 2025