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: http://www.arcetri.astro.it/science/chianti/chianti_5.1/database/zn/zn_27.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:
%Theoretical energy levels: Zhang, Sampson, ADNDT, 1992 , 52, 143 %Experimental energy levels: Edlen, B., Phys. Scr., 1983, 28, 51. %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % Enrico Landi 1997
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:
%Observed energy levels: Edlen, B., Phys. Scr., 1983, 28, 51. %Allowed transitions oscillator strengths: Zhang, Sampson, 1992, ADNDT, 52, 143 %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % Enrico Landi 1997
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: zn_27.splups %oscillator strengths: Zhang, Sampson, 1992, ADNDT, 52, 143 %collision strengths: Zhang, Sampson, 1992, ADNDT, 52, 143 %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % Enrico Landi 1997