J/ApJS/121/591 Oscillator Strengths for SiVI (Coutinho+, 1999)
Weighted Oscillator Strengths and Lifetimes for the Si VI Spectrum
Coutinho L.H., Trigueiros A.G.
<Astrophys. J. Suppl. Ser. 121, 591 (1999)>
=1999ApJS..121..591C 1999ApJS..121..591C
ADC_Keywords: Atomic physics
Keywords: atomic data
Abstract:
The weighted oscillator strengths (gf) and the lifetimes for Si VI
presented in this work were carried out in a multiconfiguration
Hartree-Fock relativistic (HFR) approach. In this calculation, the
electrostatic parameters were optimized by a least squares procedure,
in order to improve the adjustment to experimental energy levels. This
method produces gf-values that are in better agreement with intensity
observations and lifetime values that are closer to the experimental
ones. In this work we presented all the experimentally known electric
dipole Si VI spectral lines.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 118 236 Weighted oscillator strengths for SiVI
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See also:
J/A+A/389/716 : Oscillator strengths for Li-like ions (Nahar, 2002)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 7 E7.2 --- gf Weighted oscillator strength (obtained
via method in section 2 in the paper)
10- 12 I3 --- Int ? Relative observed line intensity
14- 21 F8.3 0.1nm OWave Observed wavelength corresponding to the
energy levels difference
23- 30 F8.3 0.1nm CWave Calculated wavelength corresponding to
the energy levels difference
32- 38 I7 cm-1 LLev Lower level of the transition (1)
40- 46 I7 cm-1 ULev Upper level of the transition (1)
48- 65 A18 --- LLevConf Lower level electron configuration
67- 84 A18 --- ULevConf Upper level electron configuration
86- 92 A7 --- LTerm Lower level term
95-101 A7 --- UTerm Upper level term
104-106 A3 --- LJ Lower level total angular momentum
111-114 A4 --- UJ Upper level total angular momentum
116 I1 --- ref1 Reference for data (2)
118 I1 --- ref2 ? Second reference for data (2)
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Note (1): Numerical values of the energy levels are those obtained
by an optimized procedure using the program ELCALC
(Radziemski, L. J., & Kaufman, V. 1969, J. Opt. Soc. Am., 59, 424).
Note (2):
1 = Ferner, E. 1941, Ark. Mat. Astron. Fys., 28A, 21
2 = Artru, M.C., & Brillet, W.U.L. 1977, Phys. Scr., 44, 191
3 = Griffin, P.M., Pegg, D.J., & Sellin, I.A. 1976, in Beam-Foil
Spectroscopy, 1, 321
4 = Traebert, E., Heckmann, P.H., Buttlar, H. v., & Brand, K. 1976, Z.
Physik A, 279, 127
5 = Trigueiros, 1992, J. Phys. B, 25, 2765
6 = Trigueiros, A.G., Jupen, C., & Redfors, A. 1991, Phys. Scr., 44, 191
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History:
From ApJ electronic edition
(End) Greg Schwarz (AAS) 14-Feb-2000