J/A+A/557/A136 Oxygen-like ions Energies and transition rates (Rynkun+, 2013)
Energies and E1, M1, E2, and M2 transition rates for states of the 2s(2)2p(4),
2s2p(5), and 2p(6) configurations in oxygen-like ions between F II and Kr XXIX.
Rynkun P., Jnsson P., Gaigalas G., Froese Fischer C.
<Astron. Astrophys. 557, A136 (2013)>
=2013A&A...557A.136R 2013A&A...557A.136R
ADC_Keywords: Atomic physics
Keywords: atomic data
Abstract:
Based on relativistic wave functions from multiconfiguration
Dirac-Hartree-Fock and configuration interaction calculations, E1, M1,
E2, M2 transition rates, weighted oscillator strengths, and lifetimes
are evaluated for the states of the (1s2)2s22p4,2s2p5, and
2p6 configurations in all oxygen-like ions between F II and Kr XXIX.
Valence and core-valence correlation effects were accounted for
through single-double multireference (SD-MR) expansions to increasing
sets of active orbitals. Computed energies are compared with the NIST
recommended values, generally differing by less than 600cm-1.
Description:
The calculated and observed energy levels and their difference (in
cm-1), the calculated and observed fine-structure splitting and the
difference (in cm-1), as well as the lifetime (in s) of each level
for all the spectra from F II - Kr XXIX are presented in Table 8. In
the Table 9 all the E1, E2, M1, M2 transitions between the levels of
the spectra from F II - Kr XXIX are presented. Table 9 (the table of
transition data) is ordered by lower level (the second column).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table8.dat 82 276 Energy levels and lifetimes
table9.dat 93 1237 E1, M1, E2, and M2 transition data
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See also:
J/A+A/385/716 : N-like and O-like Breit-Pauli energy levels (Tachiev+, 2002)
J/A+A/424/363 : Fe XIX transition probabilities (Jonauskas+, 2004)
J/A+AS/108/1 : IRON Project. V. O-like ions (Butler+, 1994)
Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- El Element
11- 25 A15 --- Level Label of the level
27 I1 --- J Total angular momentum
29- 35 I7 cm-1 Ecalc Energy level from present calculations
37- 43 I7 cm-1 Enist ? Energy level from NIST database
45- 50 I6 cm-1 Ec-Eo ? Difference between calculated and observed
energy levels
52- 57 I6 cm-1 Scalc ? Splitting from present calculations
59- 64 I6 cm-1 Snist ? Splitting from NIST database
66- 71 I6 cm-1 Sc-So ? Difference between calculated and observed
splittings
73- 82 E10.4 s tau ? Lifetime τ of level
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Byte-by-byte Description of file: table9.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- El Element
11- 28 A18 --- Lev1 Label of upper level
30- 47 A18 --- Lev0 Label of lower level
49- 55 I7 cm-1 dE Transition energy ΔE
57- 64 F8.2 0.1nm lambda Wavelength λ of transition (Å)
66- 67 A2 --- Type Type of transition (E1, E2, M1, M2)
69- 77 E9.4 --- gf Weighted oscillator strength in the length gauge
79- 87 E9.4 s-1 A Radiative transition probability in the length
gauge
89- 93 F5.2 --- R ? Ratio between the transition rates in length
and velocity gauges
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Acknowledgements:
Pavel Rynkun, pavel.rynkun(at)gmail.com
(End) Patricia Vannier [CDS] 08-Aug-2013