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.
%filename: fe_24.elvlc Theoretical energy levels: Autostructure calculation with energy levels optimized to match to the observed energies A Breit-Pauli distorted wave implementation for AUTOSTRUCTURE Badnell, N.R., 2011, Computer Physics Communications, 182, 1528 ADSref: http://adsabs.harvard.edu/abs/2011CoPhC.182.1528B Autostructure calculation optimized with 'SHFTIC' file using energy corrections from the following sources: Observed energy levels: Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2012). NIST Atomic Spectra Database (ver. 5.0), [Online]. Available: http://physics.nist.gov/asd [2012, September 14]. National Institute of Standards and Technology, Gaithersburg, MD. Observed energies: Del Zanna, G. Benchmarking atomic data for astrophysics: a first look at the soft X-ray lines 2012, A&A, 546, A97 doi: 10.1051/0004-6361/201219923 adsurl: http://adsabs.harvard.edu/abs/2012A%26A...546A..97D observed(theoretical) energies for n=2 above IP Yerokhin, V. A.; Surzhykov, A., Physical Review A, vol. 86, Issue 4, id. 042507 Relativistic configuration-interaction calculation of energy levels of core-excited states in lithiumlike ions: Argon through krypton ADSref: http://adsabs.harvard.edu/abs/2012PhRvA..86d2507Y DOI: http://dx.doi.org/10.1103/PhysRevA.86.042507 'Observed' energy levels (n=3,4,5 above IP): calculations of U. Safronova reported in Kato et al., 1997, ADNDT, 67, 225. ADS http://adsabs.harvard.edu/abs/1997ADNDT..67..225K updated by U. Safronova, 2001, private communication Observed energy levels 66, 68, 69, 71 Rudolph, J. K.; Bernitt, S.; Epp, S. W.; Steinbrugge, R.; Beilmann, C.; Brown, G. V.; Eberle, S.; Graf, A.; Harman, Z.; Hell, N.; Leutenegger, M.; Mueller, A.; Schlage, K.; Wille, H.-C.; Yavas, H.; Ullrich, J.; Crespo Lopez-Urrutia, J. R. X-Ray Resonant Photoexcitation: Linewidths and Energies of K-alpha Transitions in Highly Charged Fe Ions Physical Review Letters, vol. 111, Issue 10, id. 103002 DOI: 10.1103/PhysRevLett.111.103002 adsRef: http://adsabs.harvard.edu/abs/2013PhRvL.111j3002R produced as a part of the 'CHIANTI' atomic database for astrophysical spectroscopy K. Dere (GMU) - 2017 July 14 fe_24 IP ev = 2.04574e+03 Ip invcm = 16500000.000 Ip Ryd = 150.35906 fe_25 IP ev = 8.82805e+03 Ip invcm = 71203000.000 Ip Ryd = 648.84946 %comment: Fixed text problem in comments. No change to data. Peter Young, 25-Jul-2019
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.
%filename: fe_24.wgfa.olg Theoretical gf and A-values: Autostructure calculation Autostructure calculation optimized with 'SHFTIC' file using energy corrections from the following sources: Observed energy levels: Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2012). NIST Atomic Spectra Database (ver. 5.0), [Online]. Available: http://physics.nist.gov/asd [2012, September 14]. National Institute of Standards and Technology, Gaithersburg, MD. Observed energies: Del Zanna, G. Benchmarking atomic data for astrophysics: a first look at the soft X-ray lines 2012, A&A, 546, A97 doi: 10.1051/0004-6361/201219923 adsurl: http://adsabs.harvard.edu/abs/2012A%26A...546A..97D observed(theoretical) energies for n=2 above IP Yerokhin, V. A.; Surzhykov, A., Physical Review A, vol. 86, Issue 4, id. 042507 Relativistic configuration-interaction calculation of energy levels of core-excited states in lithiumlike ions: Argon through krypton ADSref: http://adsabs.harvard.edu/abs/2012PhRvA..86d2507Y DOI: http://dx.doi.org/10.1103/PhysRevA.86.042507 'Observed' energy levels (n=3,4,5 above IP): calculations of U. Safronova reported in Kato et al., 1997, ADNDT, 67, 225. ADS http://adsabs.harvard.edu/abs/1997ADNDT..67..225K updated by U. Safronova, 2001, private communication Observed energy levels 66, 68, 69, 71 Rudolph, J. K.; Bernitt, S.; Epp, S. W.; Steinbrugge, R.; Beilmann, C.; Brown, G. V.; Eberle, S.; Graf, A.; Harman, Z.; Hell, N.; Leutenegger, M.; Mueller, A.; Schlage, K.; Wille, H.-C.; Yavas, H.; Ullrich, J.; Crespo Lopez-Urrutia, J. R. X-Ray Resonant Photoexcitation: Linewidths and Energies of K-alpha Transitions in Highly Charged Fe Ions Physical Review Letters, vol. 111, Issue 10, id. 103002 DOI: 10.1103/PhysRevLett.111.103002 adsRef: http://adsabs.harvard.edu/abs/2013PhRvL.111j3002R wavelengths determined from energy levels minimum branching ratio = 1.00e-04 allWvl = 1 minDiff = 0.00010 produced as a part of the 'CHIANTI' atomic database for astrophysical spectroscopy K. Dere (GMU) - 2017 July 14 %File processed with wgfa_tidy by pryoung on 6-Mar-2019 %comment: Fixed text problem in comments. No change to data. Peter Young, 25-Jul-2019 %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).
K. Dere (GMU) - 2017 June 13 produced as a part of the 'CHIANTI' atomic database for astrophysical spectroscopy collision strengths provided in the range 1.15e+05 to 1.15e+09 K DOI: http://dx.doi.org/10.1051/0004-6361/201016417 Liang, G. Y.; Badnell, N. R. R-matrix electron-impact excitation data for the Li-like iso-electronic sequence including Auger and radiation damping adsRef: http://adsabs.harvard.edu/abs/2011A%26A...528A..69L theoretical collision strenghs: %filename: fe_24.scups
Page created by Giulio Del Zanna on Tue Dec 3 13:24:01 2024