J/A+A/488/1155 Ni XXV energy levels and radiative rates (Duan+, 2008)
Energy levels and radiative rates for optically allowed and forbidden
transitions of Ni XXV ion.
Duan B., Bari M.A., Zhong J.Y., Yan J., Li M.Y., Zhang J.
<Astron. Astrophys. 488, 1155 (2008)>
=2008A&A...488.1155D 2008A&A...488.1155D
ADC_Keywords: Atomic physics
Keywords: atomic data - atomic processes
Abstract:
We report calculations of energy levels and radiative rates for 1300
fine-structure levels generated from 189 configurations of Be-like
Nickel. The General Purpose Relativistic Atomic Structure Program
(GRASP2), developed by the I.P. Grant group in 1989 and partly
improved by our group, is adopted in the calculations of energy levels
and radiative rates. Our calculations are compared with those of
other numerical methods and experiments so that their accuracy can be
assessed. Additionally, the wavelengths, oscillator strengths, and
radiative rates (for a given radiative rate and level structure, it is
then easy to derive the line strength) a re reported for all electric
dipole (E1), electric quadrupole (E2), magnetic dipole (M1) and
magnetic quadrupole (M2) transitions among these levels. Finally, the
lifetimes of all excited levels are reported.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 67 150 The level energies of NiXXV ion
table3.dat 34 201 Transition wavelength, oscillator strengths and
radiative rates for optically allowed
transitions in NiXXV
table4.dat 34 66 Trannsition wavelength, oscillator strengths and
radiative rates for electric quadrupole (E2)
transitions in NiXXV
table5.dat 34 66 Transition wavelength, oscillator strengths and
radiative rates for magnetic dipole (M1)
transitions in NiXXV
table6.dat 34 67 Transition wavelength, oscillator strengths and
radiative rates for magnetic quadrupole (M2)
transitions in NiXXV
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See also:
J/A+A/460/959 : NiXIX radiative and excitation rates (Aggarwal+, 2006)
J/A+A/475/393 : NiXI radiative and excitation rates (Aggarwal+, 2007)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Index Index
5- 11 A7 --- Conf Configuration
13- 19 A7 --- Term 2S+1LJ term (1)
21- 30 F10.6 Ry Expt ? Expected energy
32- 39 F8.4 Ry CIV3 ? Energy from CIV3 code
41- 48 F8.4 Ry FAC Energy from FAC code (2)
50- 57 F8.4 Ry GRASP2 Energy from GRASP code
59- 67 E9.4 s tau ? Lifetime
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Note (1): S, L, J are the total spin quantum number, total orbit angular
quantum number and total angular quantum number, respectively.
Note (2): Flexible Atomic Code, Gu (2003ApJ...582.1241G 2003ApJ...582.1241G)
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Byte-by-byte Description of file: table[3456].dat
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Bytes Format Units Label Explanations
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1 I1 --- i Lower level index
3- 5 I3 --- j Upper level index
7- 14 F8.3 0.1nm lambdaji Line wavelength
16- 24 E9.4 --- gifij Oscillator strength value (gifij)
26- 34 E9.4 s-1 Aji Radiative rate
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 31-Jul-2008