J/A+A/506/1501 CrVIII radiative and excitation rates (Aggarwal+, 2009)
Radiative rates and electron impact excitation rates for transitions in Cr VIII.
Aggarwal K.M., Kato T., Keenan F.P., Murakami I.
<Astron. Astrophys. 506, 1501 (2009)>
=2009A&A...506.1501A 2009A&A...506.1501A
ADC_Keywords: Atomic physics
Keywords: atomic data - atomic processes
Abstract:
In this paper we report on calculations of energy levels, radiative
rates, oscillator strengths, line strengths, and effective collision
strengths for transitions among the lowest 362 levels of the
(1s22s22p6) 3s23p5, 3s3p6, 3s23p43d,
3s3p53d, 3s23p33d2, 3s3p43d2, 3p63d, and
3s23p44l configurations of Cr VIII.
Description:
The General purpose relativistic atomic structure package (GRASP) and
flexible atomic code (FAC) have been adopted for the calculations.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 104 362 Energy levels (in Ryd) of CrVIII and their lifetimes
table3.dat 77 45210 Transition wavelengths, radiative rates,
oscillator strengths and line strengths for
electric dipole (E1), and Aji for E2, M1,
and M2 transitions of CrVIII
table4.dat 61 36 Comparison of oscillator strengths for
transitions among the lowest 31 levels of CrVIII
table5.dat 74 30 Comparison of lifetimes (tau) for levels of CrVIII
table6.dat 97 64020 Effective collision strengths from the FAC code
for transitions in CrVIII
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See also:
J/A+A/427/763 : Fe X E1, E2,M1 and M2 transitions (Aggarwal+, 2004)
J/A+A/439/1215 : Fe X effective collision strengths (Aggarwal+, 2005)
J/A+A/399/799 : Fe XI effective collision strengths (Aggarwal+, 2003)
J/A+A/418/371 : Fe XIII electron impact excitation (Aggarwal+, 2004)
J/A+A/429/1117 : Fe XIII effective collision strengths (Aggarwal+, 2005)
J/ApJS/121/265 : Fe XV oscillator Strengths and Radiative Rates (Deb+, 1999)
J/A+A/410/349 : Fe XV effective collision strengths (Aggarwal+, 2003)
J/A+A/450/1249 : Fe XVI radiative and excitation rates (Aggarwal+, 2006)
J/A+A/420/783 : Fe XVII electron impact excitation (Aggarwal+, 2004)
J/A+A/416/383 : Fe XVIII transition probabilities (Jonauskas+, 2004)
J/ApJS/123/311 : O III excitation rate coefficients (Aggarwal+, 1999)
J/A+A/407/769 : Ca XV excitation rates for transitions (Aggarwal+, 2003)
J/A+A/432/1151 : Al XIII electron impact excitation (Aggarwal+, 2005)
J/A+A/436/1141 : Ar XIII, Ar XIV + Ar XV radiative rates (Aggarwal+, 2005)
J/A+A/441/831 : Ar XVII electron impact excitation (Aggarwal+, 2005)
J/A+A/460/331 : Fe IX radiative and excitation rates (Aggarwal+, 2006)
J/A+A/463/399 : Fe XVI radiative rates (Aggarwal+, 2007)
J/A+A/484/879 : Fe XXVI radiative and excitation rates (Aggarwal+, 2008)
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- 32 A28 --- Conf Configuration
34- 46 A13 --- Level Level
48- 54 F7.5 Ry ENIST ? NIST energy level (1)
56- 62 F7.5 Ry EGRASP1 Coulomb energies from the GRASP code
64- 70 F7.5 Ry EGRASP2 QED corrected energies the GRASP code
72- 78 F7.5 Ry EFAC Energies from the FAC Code
80- 86 F7.5 Ry ECIV3 ? Energies of Mohan et al. (2005,
J. Phys., 65, 75) from the CIV3 code
88- 94 F7.5 Ry EMCHF ? Energies of Froese Fischer et al. (2006,
At. Data Nucl. Data Tables, 92, 607)
from the MCHF code
96-104 E9.4 s tau ? GRASP lifetime
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Note (1): NIST: http://physics.nist.gov/PhysRefData
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- i [1,360] Lower level
5- 7 I3 --- j [2,362] Upper level
9- 17 E9.4 0.1nm lambdaij Transition wavelength
19- 27 E9.4 s-1 AjiE1 Radiative rate for electric dipole (E1)
29- 37 E9.4 --- fijE1 Oscillator strength for electric dipole (E1)
39- 47 E9.4 --- SE1 Line strengths for electric dipole (E1)
(in atomic units)
49- 57 E9.4 s-1 AjiE2 Radiative rate for E2 transition
59- 67 E9.4 s-1 AjiM1 Radiative rate for M1 transition
69- 77 E9.4 s-1 AjiM2 Radiative rate for M2 transition
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- i [1,2] Lower level
4- 5 I2 --- j [2,31] Upper level
7- 15 E9.5 --- GRASP GRASP oscillator strength value (1)
17- 24 E8.5 --- FAC FAC oscillator strength value (2)
26- 33 E8.4 --- MCDF MCDF oscillator strength value (3)
35- 42 E8.4 --- HFR ? HFR oscillator strength value (4)
44- 51 E8.4 --- MCHF MCFH oscillator strength value (5)
53- 61 E9.5 --- CIV3 CIV3 oscillator strength value (6)
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Note (1): Present calculations from the GRASP code with 4031 levels.
Note (2): Present calculations from the FAC code with 4881 levels.
Note (3): Calculations of Huang et al. (1983, At. Data Nucl. Data Tables,
28, 355) from the MCDF code.
Note (4): Calculations of Fawcett (1987, At. Data Nucl. Data Tables,
36, 151) from the HFR code.
Note (5): Calculations of Froese Fischer et al. (2006, At. Data Nucl. Data
Tables, 92, 607) from the MCHF code.
Note (6): Calculations of Mohan et al. (2005, J. Phys., 65, 75) from the
CIV3 code.
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Index Index
4- 21 A18 --- Conf Configuration
23- 34 A12 --- Level Level
36- 44 E9.4 s tauGRASP GRASP lifetime (1)
46- 54 E9.4 s tauFAC ? FAC lifetime (2)
56- 63 E8.3 s tauCIV3 ? CIV3 lifetime (3)
65- 74 E10.5 s tauMCHF MCHF lifetime (4)
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Note (1): Present calculations from the GRASP code
Note (2): Present calculations from the FAC code
Note (3): Calculations of Mohan et al. (2005, J. Phys., 65, 75) from the
CIV3 code
Note (4): Calculations of Froese Fischer et al. (2006, At. Data Nucl. Data
Tables, 92, 607) from the MCHF code.
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- i [1,361] Lower level
5- 7 I3 --- j [2,362] Upper level
9- 17 E9.4 --- ECS5.00 Effective collision strength for logTe=5.00K
19- 27 E9.4 --- ECS5.20 Effective collision strength for logTe=5.20K
29- 37 E9.4 --- ECS5.40 Effective collision strength for logTe=5.40K
39- 47 E9.4 --- ECS5.60 Effective collision strength for logTe=5.60K
49- 57 E9.4 --- ECS5.80 Effective collision strength for logTe=5.80K
59- 67 E9.4 --- ECS6.00 Effective collision strength for logTe=6.00K
69- 77 E9.4 --- ECS6.20 Effective collision strength for logTe=6.20K
79- 87 E9.4 --- ECS6.40 Effective collision strength for logTe=6.40K
89- 97 E9.4 --- ECS6.60 Effective collision strength for logTe=6.60K
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Acknowledgements:
Kanti Aggarwal, K.Aggarwal(at)qub.ac.uk
(End) Patricia Vannier [CDS] 27-Aug-2009