J/A+A/582/A61 N-like ions atomic data (Radziute+, 2015)
Extended calculations of level and transition properties in the nitrogen
isoelectronic sequence: Cr XVIII, Fe XX, Ni XXII, and Zn XXIV.
Radziute L., Ekman J., Jonsson P., Gaigalas G.
<Astron. Astrophys. 582, A61 (2015)>
=2015A&A...582A..61R 2015A&A...582A..61R (SIMBAD/NED BibCode)
ADC_Keywords: Atomic physics
Keywords: atomic data
Abstract:
Extensive multiconfiguration Dirac-Hartree-Fock (MCDHF) calculations
and relativistic configuration interaction (RCI) calculations are
performed for 272 states of the 2s22p3, 2s2p4, 2p5,
2s22p23l, 2s2p33l, and 2p43l (l = 0,1,2) configurations in the
nitrogen-like ions Cr XVIII, Fe XX, Ni XXII, and Zn XXIV. Valence,
core-valence, and core-core electron correlation effects are accounted
for through large configuration state function expansions. Calculated
energy levels are compared with data from other calculations and with
experimental data from the NIST database. Lande gJ-factors; hyperfine
structures; isotope shifts; and radiative electric dipole (E1),
electric quadrupole (E2), and magnetic dipole (M1) transition rates
are given for all ions. The accuracy of the calculated energy levels
is high enough to facilitate identification of observed spectral lines
involving the 2l43l' configurations, for which experimental data are
largely missing.
Description:
Table 5. Excitation energy in cm-1 for the active sets n=8
(E_{cal,n=8}) and n=9 (E_{cal,n=9}) in LSJ-coupling for FeXX
compared with Gu (2005, Cat. J/ApJS/156/105) (E_{CI+MBPT} ) and
observed energies Eobs from NIST Atomic Spectra Database (Kramida et
al., 2013, NIST Atomic Spectra Database (version 5.1) (Gaithersburg,
MD: US NIST)).
Tables 6, 8, 10, 12. Excitation energy E (in cm-1), hyperfine magnetic
dipole constants AJ(I/µI) (in MHz per units of µ_N), electric
quadrupole constants B_J/Q (MHz/barn), Lande g_J-factors, normal mass
shift {widetilde}K_{NMS} (GHzu) parameters, specific mass shift
{widetilde}K_{SMS} (GHzu), field shift {widetilde}F (GHz/fm2)
parameters for levels of FeXX, CrXVIII, NiXXII and ZnXXIV
respectively.
Tables 7, 9, 11 and 13. Excitation energy E (in cm-1) and composition
of atomic state function in LSJ-coupling FeXX, CrXVIII, NiXXII and
ZnXXIV respectively.
Tables 18 - 21. Excitation energy E (in cm-1) and lifetimes in s for
FeXX, CrXVIII, NiXXII and ZnXXIV respectively in length (τ_l)
and velocity (τ_v) forms.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table5.dat 82 272 Excitation energy for the active sets n=8 and n=9
in LSJ-coupling for Fe XX
table6.dat 120 272 Excitation energy, hyperfine magnetic dipole
constants, electric quadrupole constants,
Lande g_J-factors, normal mass shift parameters,
specific mass shift, field shift parameters
for levels of Fe XX
table7.dat 243 272 Excitation energy and composition of atomic state
function in LSJ-coupling for Fe XX
table8.dat 120 272 Excitation energy, hyperfine magnetic dipole
constants, electric quadrupole constants,
Lande g_J-factors, normal mass shift parameters,
specific mass shift, field shift parameters
for levels of Cr XVIII
table9.dat 243 272 Excitation energy and composition of atomic state
function in LSJ-coupling for Cr XVIII
table10.dat 120 272 Excitation energy, hyperfine magnetic dipole
constants, electric quadrupole constants,
Lande g_J-factors, normal mass shift parameters,
specific mass shift, field shift parameters
for levels of Ni XXII
table11.dat 243 272 Excitation energy and composition of atomic state
function in LSJ-coupling for Ni XXII
table12.dat 120 272 Excitation energy, hyperfine magnetic dipole
constants, electric quadrupole constants,
Lande g_J-factors, normal mass shift parameters,
specific mass shift, field shift parameters
for levels of Zn XXIV
table13.dat 243 272 Excitation energy and composition of atomic state
function in LSJ-coupling for Zn XXIV
table14.dat 147 39488 E1, E2 and M1 transitions energies, wavelengths,
transition rates, weighted oscillator strengths
and uncertainty estimators for Fe XX
table15.dat 147 39488 E1, E2 and M1 transitions energies, wavelengths,
transition rates, weighted oscillator strengths
and uncertainty estimators dT for Cr XVIII
table16.dat 147 39488 E1, E2 and M1 transitions energies, wavelengths,
transition rates, weighted oscillator strengths
and uncertainty estimators dT for Ni XXII
table17.dat 147 39488 E1, E2 and M1 transitions energies, wavelengths,
transition rates, weighted oscillator strengths
and uncertainty estimators dT for Zn XXIV
table18.dat 80 271 Excitation energy E and lifetimes for Fe XX
in length and velocity forms
table19.dat 80 271 Excitation energy E and lifetimes for Cr XVIII
in length and velocity forms
table20.dat 80 271 Excitation energy E and lifetimes for Ni XXII
in length and velocity forms
table21.dat 80 271 Excitation energy E and lifetimes for Zn XXIV
--------------------------------------------------------------------------------
See also:
J/ApJS/156/105 : Transitions in L-shell ions of Fe and Ni (Gu+, 2005)
Byte-by-byte Description of file: table5.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- No Position number of energy level
5- 35 A31 --- Conf Configuration
37- 49 A13 --- LSJ Notation of energy levels in LS-coupling
52- 58 I7 cm-1 Ecal,n=8 Calculated energy levels for the active
sets n=8
60- 66 I7 cm-1 Ecal,n=9 Calculated energy levels for the active
sets n=9
68- 74 I7 cm-1 ECI+MBPT Energy levels from computed with method
CI+MBPT by Gu (2005, Cat. J/ApJS/156/105)
76- 82 I7 cm-1 Eobs ? Energy levels from NIST database
(Kramida et al., 2013, NIST Atomic Spectra
Database (version 5.1)
(Gaithersburg, MD: US NIST)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table6.dat table8.dat table10.dat table12.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- No Position number of energy level
5- 35 A31 --- Conf Configuration
37- 50 A14 --- LSJ Notation of energy levels in LSJ-coupling
52- 59 I8 cm-1 E Calculated energy levels
61- 69 E9.4 MHz/nm AJ(I/muI) Hyperfine magnetic dipole constants
(in MHz per units of µ_N)
71- 79 E9.4 MHz/barn BJ/Q Hyperfine electric quadrupole constants
81- 88 F8.6 --- gJ Lande factors
90- 98 E9.5 GHz.u KNMS Normal mass shift parameters
100-109 E10.5 GHz.u KSMS Specific mass shift parameters
111-120 E10.6 GHz/fm2 F Field shift parameters
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table7.dat table9.dat table11.dat table13.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- No Position number of energy level
5- 35 A31 --- Conf Configuration
37- 49 A13 --- LSJ Notation of energy levels in LSJ-coupling
50-234 A185 --- Comp Composition
236-243 I8 cm-1 E Calculated energy levels
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table1[4567].dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 48 A48 --- Upper Upper state label
50- 97 A48 --- Lower Lower state label
99-100 A2 --- Type Type of transition (E1, E2, M1)
102-109 I8 cm-1 dE Transition energy ΔE
111-121 F11.3 0.1nm lambda Wavelength λ of transition (0.1nm)
123-131 E9.4 s-1 A Transition probability
133-141 E9.4 --- gf Weighted oscillator strengths
143-147 F5.3 --- dT ? Uncertainty estimator
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table1[89].dat table2[01].dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- No Position number of energy level
5- 35 A31 --- Conf Configuration
37- 49 A13 --- LSJ Notation of energy levels in LS-coupling
51- 58 I8 cm-1 E Calculated energy levels
60- 69 E10.5 s taul Lifetime of level in length form τl
71- 80 E10.5 s tauv Lifetime of level in velocity form τv
--------------------------------------------------------------------------------
Acknowledgements:
Laima Radziute, laima.radziute(at)tfai.vu.lt
(End) Laima Radziute [Vilnius, Lithuania], Patricia Vannier [CDS] 25-Aug-2015