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: http://www.arcetri.astro.it/science/chianti/chianti_5.1/database/ni/ni_21.html
Дата изменения: Thu Sep 15 16:57:44 2005 Дата индексирования: Sat Dec 22 14:03:50 2007 Кодировка: Поисковые слова: meteor shower |
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:
%observed energy levels (n=2,3 levels): Shirai,J., Musgrove,A., Wiese,W.L.,2000, J.Phys.Chem.Ref.Data, Monograph 8 %theoretical energy levels (n=2,3 levels): Bhatia, A.K., Landi, E., unpublished SUPERSTRUCTURE calculation %Comment: The SUPERSTRUCTURE calculation included 24 configurations: 2s2.2p4, 2s.2p5, 2p6 2s2.2p3.3l, 2s.2p4.3l, 2p5.3l (l=s,p,d) 2s2.2p3.4l, 2s.2p4.4l, 2p5.4l (l=s,p,d,f) %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % E. Landi - May 2003
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 (n=2,3 levels): Shirai,J., Musgrove,A., Wiese,W.L.,2000, J.Phys.Chem.Ref.Data, Monograph 8 %theoretical energy levels (n=2,3 levels): Bhatia, A.K., Landi, E., unpublished SUPERSTRUCTURE calculation %A values and oscillator strengths: Bhatia, A.K., Landi, E., unpublished SUPERSTRUCTURE calculation %Comment: The SUPERSTRUCTURE calculation included 24 configurations: 2s2.2p4, 2s.2p5, 2p6 2s2.2p3.3l, 2s.2p4.3l, 2p5.3l (l=s,p,d) 2s2.2p3.4l, 2s.2p4.4l, 2p5.4l (l=s,p,d,f) %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % E. Landi - May 2003
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: ni_21.splups %Oscillator strengths: Bhatia, A.K., Landi, E., Mason, H.E. 2003, ADNDT, 83, 71 %Collision strengths: Bhatia, A.K., Landi, E., Mason, H.E. 2003, ADNDT, 83, 71 %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % E. Landi 2001
contains the spline fits to the scaled proton collision strengths.
References:
%filename: ni_21.psplups %rates: Feldman, U., Doschek, G.A., Cheng, C.C., Bhatia, A.K., 1980, J. Applied Phys., 51, 190 %energies: Observed energies from CHIANTI .elvlc file %comment: Fitted using single_temp.pro with scalx=0.90 %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % Peter Young 12-Mar-02