Astronomical Data Center
ADC/CDS Standard Document for Catalog:
/catalogs/6/6010/
The following is the "ReadMe" document that describes this ADC catalog. You can access the files described here in three ways:
VI/10 Semiempirical gf Values (Kurucz + 1975)
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A Table of Semiempirical gf Values
Kurucz R.L., Peytremann E.
<SAO Spec. Report No. 362 (1975)>
1975SAOSR.362.....K
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ADC_Keywords: Abundances; Atomic physics
Abstract:
This table of gf values for 265,587 atomic lines is selected from the line
data used to calculate line-blanketed model atmospheres (Kurucz et al. 1974).
The data are especially useful for line identification and spectral synthesis
in solar and stellar spectra. Except for 10,100 lines taken from the liter-
ature, the gf values have been calculated semiempirically by using scaled
Thomas-Fermi-Dirac radial wavefunctions and eigenvectors found through
least-squares fits to observed energy levels. Included in the calculation
were the first five or six stages of ionization for sequences up through
nickel. Published gf values have been included for elements heavier than
nickel. The tabulation is restricted to lines with wavelengths less than
10 um.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
data.dat 79 265586 Semiempirical gf Data
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See also:
VI/33 : Semiempirical Calculation of gf Values for Fe II
Byte-by-byte Description of file: data.dat
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Bytes Format Units Label Explanations
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1- 9 F9.4 nm wl Wavelength
11- 16 F6.3 --- log(gf) Log of Oscillator Strength
19- 21 F3.1 --- J1 J Quantum Number of Lower Level
23- 33 F11.3 cm-1 E1 Energy of lower level
36- 38 F3.1 --- J2 J quantum number of upper level
40- 50 F11.3 cm-1 E2 Energy of upper level
55- 59 F5.2 --- el *Element number and charge
60- 69 A10 --- C1 Lower configuration
70- 79 A10 --- C2 Upper configuration
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Note on el:
integer part = element number
decimal part = charge
References:
Kurucz R.L. and Peytremann E. 1975, SAO Spec. Report No. 362.
=1975SAOSR.362.....K
Kurucz R.L. and Peytremann E. 1974, SAO Spec. Report No. 359.
=1974SAOSR.359.....K
Kurucz R.L. and Peytremann E. 1973, SAO Spec. Report No. 351.
=1973SAOSR.351.....K
Kurucz R.L., Peytremann E. and Avrett E.H. 1974, Blanketed Model Atmospheres
for Early-Type Stars. Smithsonian Institution Press, Washington.
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(End) Julie Anne Watko [SSDOO/ADC] 15-Aug-1996
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