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: http://www.arcetri.astro.it/science/chianti/chianti_5.1/database/mg/mg_4.html
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The CHIANTI database consists of 4 primary ASCII files for each ion in the database.
contains the energy levels in cm^(-1) It includes both experimental data and theoretical values of the levels energies.
References:
%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. %energy levels: Bhatia, A.K., private communications % produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % Enrico Landi 2002
contains wavelengths, gf and A values for each transition. Wavelengths are based on experimental level energies where available; wavelengths calculated from theoretical energies are less accurate and are given as negative values.
References:
%energy levels: Martin, W.C., Sugar, J., Musgrove, A., Dalton, G.R., 1995, NIST Standard Reference Database 61, NIST Database for Atomic Spectroscopy, Version 1.0 %transition probabilities (1-2): Martin, W.C., Sugar, J., Musgrove, A., Dalton, G.R., 1995, NIST Standard Reference Database 61, NIST Database for Atomic Spectroscopy, Version 1.0 %transition probabilities: Blackford, H.M.S., Hibbert, A., 1994, ADNDT, 58, 101 % produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % K.P. Dere 1995
contains the spline fits to the electron collision strengths scaled according to 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.
References:
%filename: mg_4.splups %oscillator strengths: Blackford, H.M.S., Hibbert, A., 1994, ADNDT, 58, 101 %effective collision strengths: Saraph, H.E., Tully, J.A., 1994, A&AS, 107, 29 %collision strengths: Mohan, M., Baluja, K.L., Hibbert, A., 1988, Phys. Scripta, 38, 699 %comment: effective collision strengths were provided in the temperature range 3.0 < Log T < 5.25 %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % K.P. Dere 1994
contains the spline fits to the scaled proton collision strengths.
References:
%filename: mg_4.psplups %rates: Bely, O., Faucher, P., 1970, A&A 6, 88 %energies: Observed energies from .elvlc file. %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % Peter Young 25-May-2001