J/A+A/483/339 Extended analysis of the Eu III spectrum (Wyart+, 2008)
Extended analysis of the Eu III spectrum.
Wyart J.-F, Tchang-Brillet W.-U.L., Churilov S.S., Ryabtsev A.N.
<Astron. Astrophys. 483, 339 (2008)>
=2008A&A...483..339W 2008A&A...483..339W
ADC_Keywords: Atomic physics
Keywords: atomic data - stars: atmospheres - stars: chemically peculiar -
stars: variables: general
Abstract:
We create an Eu III new atomic data set for interpreting the
spectra of chemically peculiar stars by an extended analysis
of the doubly-ionized europium.
We classified Eu III spectral lines from a laboratory wavelength list
with the support of energy and transition probability predictions in
the Racah-Slater approach, using the Cowan codes and generalized
least-squares fit (GLS) studies along the sequence of doubly-ionized
lanthanides.
Description:
The table contains 1150 transitions. For each transition between
2000-9000Å, we give wavelength calculated from the experimental
level energies (Ritz wavelength); weighted transition probability guA
and logarithm of the oscillator strength log(glf) (where gu and gl are
the statistic weights of the upper and lower levels, respectively);
cancellation factor CF; energy of the lower level with its parity,
g - factor Lande, level designation and J - value; the same for the
upper level.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 102 1150 Spectrum of Eu III
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See also:
J/PAZh/28/41 : Eu III oscillator strengths (Masonkina+, 2002)
Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 8 F8.3 0.1nm lambda Wavelength calculated from level energies
(Ritz values)
10- 18 E9.4 s-1 gA1 Weighted transition probability,
statistic weight of the upper level
20- 25 F6.3 --- log(gf) Logarithm of weighted oscillator strengths,
statistic weight of the upper level
27- 32 F6.3 --- CF Cancellation factor (1)
34- 41 F8.2 cm-1 E0 Energy of the lower level
43 A1 --- p0 [oe] Lower level parity (e: even, o: odd)
45- 50 F6.3 --- g0 Lower level Lande factor
52- 63 A12 --- Name0 Lower level designation by first LS component
65- 67 F3.1 --- J0 Lower level J value
69- 76 F8.2 cm-1 E1 Energy of the upper level
78 A1 --- p1 [oe] Upper level parity (e: even, o: odd)
80- 85 F6.3 --- g1 Upper level Lande factor
87- 98 A12 --- Name1 Upper level designation by first LS component
100-102 F3.1 --- J1 Upper level J value
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Note (1): See R.D.Cowan, 1981, Theory of atomic structure and spectra, p.432.
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Acknowledgements:
Lydia Tchang-Brillet, lydia.tchang-brillet(at)obspm.fr
(End) Patricia Vannier [CDS] 05-Mar-2008