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J/A+AS/144/141 Iron Project. XLIII. Fe V (Nahar+, 2000)
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Atomic data from the Iron Project. XLIII. Transition probabilities for Fe V
Nahar S.N., Delahaye F., Pradhan A.K., Zeippen C.J.
<Astron. Astrophys. Suppl. Ser. 144, 41 (2000)>
=2000A&AS..144..141N
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ADC_Keywords: Atomic physics
Keywords: atomic data
Abstract:
An extensive set of dipole-allowed, intercombination, and forbidden
transition probabilities for Fe V is presented. The Breit-Pauli
R-matrix (BPRM) method is used to calculate 1.46x10^6^ oscillator
strengths for the allowed and intercombination E1 transitions among
3865 fine-structure levels dominated by configuration complexes with
n<=10 and l<=9. These data are complemented by an atomic structure
configuration interaction (CI) calculation using the SUPERSTRUCTURE
program for 362 relativistic quadrupole (E2) and magnetic dipole (M1)
transitions among 65 low-lying levels dominated by the 3d^4^ and 3d^3^
4s configurations. Procedures have been developed for the
identification of the large number of fine-structure levels and
transitions obtained through the BPRM calculations. The target ion Fe
VI is represented by an eigenfunction expansion of 19 fine-structure
levels of 3d^3^ and a set of correlation configurations. Fe V bound
levels are obtained with angular and spin symmetries SL{pi} and J{pi}
of the (e + Fe VI) system such that 2S+1=5, 3, 1, L<=10, J<=8 of even
and odd parities. The completeness of the calculated dataset is
verified in terms of all possible bound levels belonging to relevant
LS terms and transitions in correspondence with the LS terms. The
fine-structure averaged relativistic values are compared with previous
Opacity Project LS coupling data and other works. The 362 forbidden
transition probabilities considerably extend the available data for
the E2 and M1 transitions, and are in good agreement with those
computed by Garstang for the 3d^4^ transitions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1a.dat 72 3865 Identified fine-structure energy levels of Fe V
table1b.dat 146 4737 *Identified fine structure energy levels,
ordered in energy and grouped as LS terms
table3.dat 67 1457537 *Transition probabilities for Fe V
table5a.dat 80 3727 Table of oscillator strengths where observed
energies are used
table5b.dat 80 4174 Table of oscillator strengths from table5a.dat,
but ordered in energy and grouped according
to components of LS multiplets
table7.dat 74 1808 The Complete dataset of forbidden transition
probabilities (M1 and E2) for Fe V among the
levels of 3d^4^ and 3d^3^4s
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Note on table1b.dat:
Total number of levels processed= 3865
Nlv: Number of levels expected
Nlv(c): Number of levels obtained
EQN: Effective Quantum Number
E(Ry): Energy in Ry
=> Nlv=Nlv(c) -> set complete
First lines:
Configuration J E(Ry) EQN LS terms
Eqv electron/unidentified levels, parity: e
3d4 0 -5.56210E+00 5 D e
3d4 1 -5.56072E+00 5 D e
3d4 2 -5.55802E+00 5 D e
3d4 3 -5.55417E+00 5 D e
3d4 4 -5.54927E+00 5 D e
Nlv(c)= 5 : set complete
Eqv electron/unidentified levels, parity: e
3d4 2 0 -5.34705E+00 3 P e
3d4 2 1 -5.33885E+00 3 P e
3d4 2 2 -5.32467E+00 3 P e
Nlv(c)= 3 : set complete
Eqv electron/unidentified levels, parity: e
Note on table3.dat:
First line - The two numbers in the table are the nuclear charge (Z = 26)
and the number of electrons (N_{elc} = 22) in the ion, Fe V.
Below the above line, sets of transitions of a pair of symmetries
J{pi} - J'{pi}' are given.
For each set:
The first line - 2Ji, parity {pi} (=0 for even and =1 for odd),
2Jk and {pi}k, the symmetries of transitions.
The second line - N_{Ji} and N_{Jk}, the number of bound levels for
of the two symmetries.
This line is followed by N_{Ji} x N_{Jk} number of transitions.
For each transition the first two columns are the level indices, I_i_
and I_k_ for the energies.
The third and the fourth columns are the energies, E_i_ and E_k_.
The fifth column is gf_L_ where g=2J+1 (J is the total angular momentum
of the lower level).
The sixth column is S (line strength).
The last column is the transition probability, A_{ki}(s^-1^).
If a gf-value is negative the lower level is i (absorption) and if it
is positive, the lower level is k (emission). The identification of the
transition can be determined from the levels of indices I_i_ and I_k_
in Table 1a.
First lines:
26 22
0 0 2 1
80 236 Ei(Ry) Ej(Ry) gfL S Aji(s-1)
1 1 -5.56210E+00 -3.14950E+00 -2.212E-01 2.751E-01 3.447E+09
1 2 -5.56210E+00 -3.14082E+00 -5.660E-03 7.013E-03 8.884E+07
1 3 -5.56210E+00 -3.13088E+00 -5.894E-02 7.273E-02 9.328E+08
1 4 -5.56210E+00 -2.99367E+00 -8.675E-02 1.013E-01 1.532E+09
1 5 -5.56210E+00 -2.97465E+00 -4.542E-03 5.266E-03 8.142E+07
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See also:
J/A+AS/103/273 : IRON Project II IR collision strengths of C-like ions
J/A+A/283/319 : IRON Project III B-like ions
J/A+AS/108/1 : IRON Project V Collision strengths of O-like ions
J/A+A/293/953 : IRON Project VI Fe II collision strengths
J/A+A/293/967 : IRON Project VII Fe II radiative transitions
J/A+AS/109/193 : IRON Project VIII Electron excitation of Ti-like ions
J/A+AS/119/509 : IRON Project XVII Radiative transition in Fe III
J/A+AS/119/523 : IRON Project XVIII Electron impact for Fe III
J/A+AS/120/361 : IRON Project XIX Fe II radiative transitions
J/A+AS/123/159 : IRON Project XXII C and O radiative rates
J/A+AS/123/575 : IRON Project XXIII Fe XXII excitation rate coefficients
J/A+AS/126/373 : IRON Project XXVII Fe IV collision strengths
J/A+AS/131/499 : IRON Project XXIX Boron isoelectronic sequence
J/A+AS/131/153 : IRON Project XXXI Fe XII electron excitation
J/A+AS/135/347 : IRON Project XXXV Fe XXIV & Fe XXV oscillator strengths
J/A+AS/136/395 : IRON Project XXXVII Fe VI collision strengths
J/A+AS/137/165 : IRON Project XXXVIII Fe XV fine-structure transitions
J/A+AS/143/483 : IRON Project XLII Fe XXI electron impact excitation
Byte-by-byte Description of file: table1a.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Nlv Total number of symmetry J{pi} (1)
5- 7 A3 --- JP J value (o: odd, e: even)
10- 12 I3 --- i i level
14- 20 A7 --- Ct t configuration (2)
25- 27 A3 ---- StLtPt t core level (2)
29- 32 A4 --- Jt J value at t (2)
34- 36 A3 --- nl Principal and orbital quantum numbers of
the outer electron
39- 40 I2 --- J J value
43- 54 E12.5 Ry E Energy
56- 60 F5.2 --- EQN ? Effective Quantum Number (3)
64- 73 A10 --- Terms Possible LS terms of the energy level
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Note (1): Z = 26, No. of core electrons = 21
Target levels:
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Config SLp J E(Ry)
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1 3d3 4Fe 3/2 0.00000E+00
2 3d3 4Fe 5/2 4.65900E-03
3 3d3 4Fe 7/2 1.08290E-02
4 3d3 4Fe 9/2 1.82310E-02
5 3d3 4Pe 1/2 1.70756E-01
6 3d3 4Pe 3/2 1.72610E-01
7 3d3 4Pe 5/2 1.78707E-01
8 3d3 2Ge 7/2 1.87871E-01
9 3d3 2Ge 9/2 1.94237E-01
10 3d3 2Pe 3/2 2.38888E-01
11 3d3 2Pe 1/2 2.41445E-01
12 3d3 2 2De 5/2 2.59568E-01
13 3d3 2 2De 3/2 2.60877E-01
14 3d3 2He 9/2 2.61755E-01
15 3d3 2He 11/2 2.66116E-01
16 3d3 2Fe 7/2 4.21163E-01
17 3d3 2Fe 5/2 4.24684E-01
18 3d3 1 2De 5/2 6.53448E-01
19 3d3 1 2De 3/2 6.56558E-01
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Number of fine structure levels:
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2J pi Nlv(c)
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0 0 80
0 1 85
2 0 214
2 1 236
4 0 310
4 1 338
6 0 336
6 1 367
8 0 308
8 1 345
10 0 244
10 1 269
12 0 175
12 1 186
14 0 114
14 1 116
16 0 71
16 1 71
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Total number of levels = 3865
Note (2): T(config SLpi Jt): T -> target (core) of the level
Note (3): No EQN is assigned for Equivalent electron levels
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Table 4: Calculated energy level indices for various J{pi} that
have been observed
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J{pi} nj levels indices
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0 e 6 1,2,3,4,5,6
0 o 6 1,2,3,4,6,7
1 e 11 1,2,3,4,5,6,7,8,9,10,11
1 o 19 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19
2 e 18 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18
2 o 24 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,17,18,19,20,21,22,23,24,25
3 e 14 1,2,3,4,5,6,7,8,9,10,11,12,13,14
3 o 24 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24
4 e 13 1,2,3,4,5,6,7,8,9,10,11,12,13
4 o 18 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18
5 e 6 1,2,3,4,5,6
5 o 11 1,2,3,4,5,6,7,8,9,10,11
6 e 3 1,2,3
6 o 5 1,2,3,4,5
7 o 1 1
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Note: nj is the total number on J{pi} levels observed
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Byte-by-byte Description of file: table5a.dat table5b.dat
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Bytes Format Units Label Explanations
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2- 12 A11 --- Ci Initial configuration (1)
14- 24 A11 --- Cj Final configuration
27- 29 A3 --- SiLiPi Initial core level
31- 33 A3 --- SjLjPj Final core level
35- 36 I2 --- 2Ji+1 2Ji+1 value
38- 39 I2 --- Ii ? Energy level index of 2Ji+1
41- 42 I2 --- 2Jj+1 2Jj+1 value
44- 45 I2 ---- Ij ? Energy level index of 2Jj+1
48- 53 F6.4 Ry Ei Initial energy
56- 61 F6.4 Ry Ej Final energy
63- 71 E9.3 --- f f value
73- 80 E8.2 s-1 A A value
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Note (1): nz = 26 , No. of core electrons= 21, No of transitions = 3727
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- Ci Initial configuration
9- 14 A6 --- Cj Final configuration
16- 18 A3 --- SiLiPi Initial core level
20- 22 A3 --- SjLjPj Final core level
25 I1 --- Ji Initial J value
28 I1 --- Jj Final J value
30- 38 F9.1 0.1nm Lvac Wavelength in vacuum
40- 47 F8.1 cm-1 Ei Initial energy
49- 56 F8.1 cm-1 Ej Final energy
58- 65 E8.2 s-1 AM1ji Forbidden M1 transition probability
67- 74 E8.2 s-1 AE2ji Forbidden E2 transition probability
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History: In table 3, the "gfV" parameter has been changed to line strength "S",
by the authors, on 21-Sep-2000
Acknowledgements: Sultana N. Nahar <nahar@astronomy.ohio-state.edu>
References:
1993A&A...279..298H : IRON Project I Goal and methods
1994A&AS..107...29S : IRON Project IV Electron excitation of F-like ions
1995A&AS..110..209P : IRON Project IX Electron excitation of Cl-like ion
1995A&AS..111..347G : IRON Project X Si- & S-like ions IR coll. strengths
1996A&AS..115..151S : IRON Project XI Ar VI, K VII & CaVIII fine-structure
1995A&AS..114..367B : IRON Project XII V-like ions electron excitation
1996A&AS..115..551B : IRON Project XIII Ni II & Fe II electron excitation
1996A&A...309..677S : IRON Project XIV Fe XIV fine-structure transition
1996A&AS..118..157K : IRON Project XV He II & Fe XXVI Electron excitation
1996A&AS..119..105B : IRON Project XVI Fe V oscillator strengths
1997A&AS..122..167B : IRON Project XX Fe I oscillator strengths
1997A&AS..122..177P : IRON Project XXI Fe I fine-structure transition
1997A&AS..126..105B : IRON Project XXIV Fe XXIV electron excitation
1998A&AS..127..545B : IRON Project XXV Fe XII electron excitation
1997A&AS..126..365B : IRON Project XXVI Fe IV oscillator strengths
1998A&AS..129..161B : IRON Project XXVIII F-like ions fine-structure trans.
1999A&AS..134..369S : IRON Project XXX P III, S IV & Cl V collision data
1998A&AS..133..245G : IRON Project XXXII Ar III effective collision strength
1999A&AS..135..159M : IRON Project XXXIII Carbon radiative rates
1999A&AS..136..385E : IRON Project XXXIV Fe XVI electron impact excitation
1999A&AS..137..175C : IRON Project XXXVI Fe XXIII electron excitation
1999A&AS..137..529B : IRON Project XXXIX Ni II oscillator strengths
2000A&AS..141..285S : IRON Project XL Fe XIV electron excitation
2000A&AS..142..313B : IRON Project XLI Fe VII electron excitation
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(End) Patricia Bauer [CDS] 10-May-2000