J/ApJS/218/16 Energy levels & transition rates of Be-like ions (Wang+, 2015)
Systematic calculations of energy levels and transition rates of Be-like ions
with Z=10-30 using a combined configuration interaction and many-body
perturbation theory approach.
Wang K., Guo X.L., Liu H.T., Li D.F., Long F.Y., Han X.Y., Duan B.,
Li J.G., Huang M., Wang Y.S., Hutton R., Zou Y.M., Zeng J.L., Chen C.Y.,
Yan J.
<Astrophys. J. Suppl. Ser., 218, 16 (2015)>
=2015ApJS..218...16W 2015ApJS..218...16W
ADC_Keywords: Atomic physics
Keywords: atomic data; atomic processes
Abstract:
We report calculations of energy levels and radiative rates for
transitions among the lowest 116 fine-structure levels arising from
the n≤5 configurations in Be-like ions with Z=10-30. The wavelengths,
oscillator strengths, line strengths, and radiative rates for all
possible electric dipole, magnetic dipole, electric quadrupole, and
magnetic quadrupole transitions among the 116 levels have been
calculated using the combined configuration interaction and many-body
perturbation method. The accuracy of the results is determined through
extensive comparisons with existing laboratory measurements and
theoretical results. The present complete set of results should be of
great help in line identification and the interpretation of spectra,
as well as in the modeling and diagnostics of astrophysical and fusion
plasmas.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 103 2436 Level energies and lifetimes of the states in Be-like
ions with Z=10-30, as well as level designations in
both the LSJ- and jj coupling schemes, and the
dominant mixing coefficients of the LSJ basis
table2.dat 78 184785 Wavelengths, line strengths, absorption oscillator
strengths and transition rates for transitions in
Be-like ions with Z=10-30
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See also:
J/ApJS/215/26 : Energy levels & transition rates of C-like ions (Wang+, 2014)
J/A+A/564/A24 : Carbon isoelectronic sequence data (Ekman+, 2014)
J/A+A/493/697 : Effective collision strength of Mg IX (Hudson, 2009)
J/A+A/488/1155 : Ni XXV energy levels and radiative rates (Duan+, 2008)
J/A+A/487/1203 : Electron-impact excitation of Be-like Mg (Del Zanna+, 2008)
J/A+A/436/1141 : Radiative rates in Ar XIII, Ar XIV + Ar XV (Aggarwal+, 2005)
J/A+A/434/365 : A-values + oscillator strength of O-like ions (Landi+, 2005)
J/ApJS/156/105 : Transitions in L-shell ions of Fe and Ni (Gu+, 2005)
J/A+A/430/331 : Atomic data from the IRON Project. LVI. (Chidichimo+, 2005)
J/A+A/365/266 : FeXXIII FS level oscillator strengths (Tully+, 2001)
J/A+AS/125/149 : CHIANTI - Atomic Database For Emission Lines I. (Dere+ 1997)
http://physics.nist.gov/asd : NIST atomic spectra database
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Z [10/30] Atomic number
4- 6 I3 --- Key [1/116] Energy level key
8- 12 A5 --- Conf Configuration
14- 20 A7 --- LSJ LSJ identifier
22- 31 A10 --- jj The jj configuration (1)
33 I1 --- J [0/5] The J level
35 A1 --- P [oe] J level parity π (o=odd, e=even)
38- 48 E11.6 eV NIST [0/1960]? Observed NIST level energy (G1)
50- 60 E11.6 eV MBPT [0/2275] Many-Body Perturbation Theory level
energy
62- 70 E9.4 s Life ? Present Many-Body Perturbation Theory lifetime
72- 77 F6.3 --- MC1 [-1/1] First LSJ mixing coefficient
79- 81 I3 --- n_MC1 [1/116] The MC1 state indicated by given Key value
83- 88 F6.3 --- MC2 [-0.8/0.8]? Second LSJ mixing coefficient
90- 92 I3 --- n_MC2 [8/116]? The MC2 state indicated by given Key value
94- 99 F6.3 --- MC3 [-0.7/0.6]? Third LSJ mixing coefficient
101-103 I3 --- n_MC3 [11/114]? MC3 state indicated by given Key value
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Note (1): The number above super or subscript is the occupation number of
the corresponding sub-shell.
s+ = s1/2,
p- = p1/2,
p+ = p3/2.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Z [10/30]? Atomic number
4- 6 I3 --- j [3/116]? The j transition code
8- 10 I3 --- i [1/115]? The i transition code
12- 21 E10.5 0.1nm lam-N [7.4/769000]? NIST wavelength; Angstroms (1)
23- 32 E10.5 0.1nm lam-M [5.4/81565000]? Present Many-Body Perturbation
Theory wavelength; Angstroms
34- 35 A2 --- TP Transition type (E1, E2, M1 or M2)
37- 45 E9.4 --- S Present Many-Body Perturbation Theory line
strength
47- 55 E9.4 --- f Present Many-Body Perturbation Theory
absorption oscillator strength
57- 65 E9.4 s-1 A-MBPT Present Many-Body Perturbation Theory
transition rate
67- 75 E9.4 s-1 A-NIST ? NIST transition rate (G1)
77- 78 A2 --- Acc Accuracy (1)
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Note (1): Estimated accuracy rating of the A-values listed in the NIST ASD.
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Global notes:
Note (G1): From the NIST Atomic Spectra Database (ASD; version 5.2;
http://physics.nist.gov/asd).
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 05-Aug-2015