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: http://www.arcetri.astro.it/science/chianti/chianti_5.1/database/ca/ca_17.html
Дата изменения: Thu Sep 15 16:55:08 2005 Дата индексирования: Sat Dec 22 14:03:01 2007 Кодировка: |
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: J. Sugar, C. Corliss, 1985, J.Phys.Chem.Ref.Data., 14, Supplement 2 %energy levels (11,12,17,18,19,20,22,23,24,25,26,29): Kelly, R.L., 1987, J.Phys.Chem.Ref.Data, 16, Suppl. 1 %Theoretical energy levels (n=2): Dufton, P.L., Kingston, A.E., Scott, N.S., 1983, J.Phys.B, 16, 3053 %theoretical energy levels (n=3): Sampson,D.H., Goett, S.J., Clark, R.E.H., 1984, ADNDT, 30, 125 %comment: energy levels assigned by comparison with observed spectra, K. Dere - Nov. 1999 13 %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % n=2 levels: E.Landi May 2001; n=3 levels: K.P.Dere Jun 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: Martin, W.C., Sugar, J., Musgrove, A., Dalton, G.R., 1995, NIST Database for Atomic Spectroscopy, Version 1.0, NIST Standard Reference Database 61. %observed energy levels (11,12,17,18,19,20,22,23,24,25,26,29): Kelly, R.L., 1987, J.Phys.Chem.Ref.Data, 16, Suppl. 1. %theoretical energy levels (n=2): Dufton, P.L., Kingston, A.E., Scott, N.S., 1983, J.Phys.B, 16, 3053 %theoretical energy levels Sampson,D.H., Goett, S.J., Clark, R.E.H., 1984, ADNDT, 30, 125. %oscillator strengths allowed transitions: Zhang, H.L., Sampson, D.H., 1992, ADNDT, 52, 43 %oscillator strengths forbidden transitions: Muhlethaler & Nussbaumer, 1976, A&A, 48, 109 %oscillator strengths (11-46): Sampson, D.H., Goett, S.J., Clark, R.E.H., 1984, ADNDT, 30, 125 %comment: gf values for transitions 19-26 and 23-26 were simply taken to be equal to the O V gf values reported by Hibbert, 1980, J. Phys. B, 13, 1721. The A values were obtained from the gf values by using the wavelengths listed. %comment: identified transitions based on comparison with observed spectra, K. Dere - Nov. 1999 1 13 - 19.606 2.761e-01 1.597e+12 A1 2s2 1S0.0 - 2s.3p 3P1.0 I1 %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % n=2 levels: E.Landi May 2001; n=3 levels: K.P.Dere Jun 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: ca_17.splups %Oscillator strengths (1 - 10): Dufton, P.L., Kingston, A.E., Scott, N.S., 1983, J.Phys.B, 16, 3053 %Effective collision strengths (1 - 10): Dufton, P.L., Kingston, A.E., Scott, N.S., 1983, J.Phys.B, 16, 3053 %oscillator strengths and collision strengths (11-46): Sampson, D.H., Goett, S.J., Clark, R.E.H., 1984, ADNDT, 30, 125 % comment: effective collision strengths were given in the temperature range 6.4 < Log T < 7.2 %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % n=2: Enrico Landi May 2001; n=3: K.P.Dere Jun 1997
contains the spline fits to the scaled proton collision strengths.
References:
%filename: ca_17.psplups %rates: Ryans R.S.I., Foster-Woods V.J, Copeland F., Keenan F.P., Matthews A., Reid R.H.G., 1998, ADNDT 70, 179-229 %energies: Bhatia A.K., Feldman U., Seely J.F., 1986, ADNDT 35, 449-472 %comment: Fits valid for temperatures 1e6 to 2e8 K. %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % Peter Young 24-Oct-00