J/A+A/487/383 Ar XVIII radiative and excitation rates (Aggarwal+, 2008)
Radiative rates and electron impact excitation rates for H-like Ar XVIII.
Aggarwal K.M., Hamada K., Igarashi A., Jonauskas V., Keenan P.F.,
Nakazaki S.
<Astron. Astrophys. 487, 383 (2008)>
=2008A&A...487..383A 2008A&A...487..383A
ADC_Keywords: Atomic physics
Keywords: atomic data - atomic processes
Abstract:
In this paper we report on calculations for energy levels, radiative
rates, collision strengths, and effective collision strengths for
transitions among the lowest 25 levels of the n≤5 configurations
of H-like Ar XVIII.
The general-purpose relativistic atomic structure package (GRASP) and
Dirac atomic R-matrix code (DARC) are adopted for the calculations.
Radiative rates, oscillator strengths, and line strengths are reported
for all electric dipole (E1), magnetic dipole (M1), electric
quadrupole (E2), and magnetic quadrupole (M2) transitions among the 25
levels. Furthermore, collision strengths and effective collision
strengths are listed for all 300 transitions among the above 25 levels
over a wide energy (temperature) range up to 800Ryd (107.4K).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 57 25 Energy levels (in Ryd) of Ar XVIII
table2.dat 75 237 Transition wavelengths, radiative rates,
oscillator strengths and line strengths for
electric dipole (E1), and Aji for E2, M1 and
M2 transitions in Ar XVIII
table3.dat 75 300 Collision strengths for transitions in Ar XVIII
table4.dat 105 300 Effective collision strengths for transitions
in Ar XVIII
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See also:
J/ApJS/123/311 : O III excitation rate coefficients (Aggarwal+, 1999)
J/ApJS/121/265 : Fe XV oscillator Strengths and Radiative Rates (Deb+, 1999)
J/A+A/407/769 : Ca XV excitation rates for transitions (Aggarwal+, 2003)
J/A+A/399/799 : Fe XI effective collision strengths (Aggarwal+, 2003)
J/A+A/410/349 : Fe XV effective collision strengths (Aggarwal+, 2003)
J/A+A/416/383 : Fe XVIII transition probabilities (Jonauskas+, 2004)
J/A+A/418/371 : Fe XIII electron impact excitation (Aggarwal+, 2004)
J/A+A/420/783 : Fe XVII electron impact excitation (Aggarwal+, 2004)
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/429/1117 : Fe XIII effective collision strengths (Aggarwal+, 2005)
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/450/1249 : Fe XVI radiative and excitation rates (Aggarwal+, 2006)
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 XXVII radiative and excitation rates (Aggarwal+, 2008)
J/A+A/486/1053 : O IV 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- 2 I2 --- Index [1,25] Index
4- 5 A2 --- Conf Configuration
7- 18 A12 --- Level Level
20- 28 F9.5 Ry Expt Theoretical threshold energy (1)
30- 38 F9.5 Ry GRASP1 ?=- Coulomb energy
40- 48 F9.5 Ry GRASP2 QED corrected energy
50- 57 F8.4 ---- FAC Present energy calculations from the
Flexible Atomic Code (FAC) code
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Note (1): See NIST, http://physics.nist.gov/PhysRefData
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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 --- i [1,24] Lower level
4- 5 I2 --- j [2,25] Upper level
7- 15 E9.4 0.1nm lambdaij Transition wavelength
17- 25 E9.4 s-1 AjiE1 Electric dipole (E1) radiative rate
27- 35 E9.4 --- fijE1 Electric dipole (E1) oscillator strength
37- 45 E9.4 --- SE1 Electric dipole (E1) line strength
(in atomic unit)
47- 55 E9.4 s-1 AjiE2 Electric quadrupole (E2) radiative rate
57- 65 E9.4 s-1 AijM1 Magnetic dipole (M1) radiative rate
67- 75 E9.4 s-1 AijM2 Magnetic quadrupole (M2) radiative rate
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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- 2 I2 --- i [1,24] i lower level index of the transition
4- 5 I2 --- j [2,25] j upper level index of the transition
7- 15 E9.4 --- CS350 Collision strength at 350Ry
17- 25 E9.4 --- CS400 Collision strength at 400Ry
27- 35 E9.4 --- CS500 Collision strength at 500Ry
37- 45 E9.4 --- CS600 Collision strength at 600Ry
47- 55 E9.4 --- CS700 Collision strength at 700Ry
57- 65 E9.4 --- CS800 Collision strength at 800Ry
67- 75 E9.4 --- CSFAC Collision strength at FAC energy in table1
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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 [1,24] i lower level index of the transition
4- 5 I2 --- j [2,25] j upper level index of the transition
7- 15 E9.4 --- ECS5.60 Effective collision strength at logTe=5.60K
17- 25 E9.4 --- ECS5.80 Effective collision strength at logTe=5.80K
27- 35 E9.4 --- ECS6.00 Effective collision strength at logTe=6.00K
37- 45 E9.4 --- ECS6.20 Effective collision strength at logTe=6.20K
47- 55 E9.4 --- ECS6.40 Effective collision strength at logTe=6.40K
57- 65 E9.4 --- ECS6.60 Effective collision strength at logTe=6.60K
67- 75 E9.4 --- ECS6.80 Effective collision strength at logTe=6.80K
77- 85 E9.4 --- ECS7.00 Effective collision strength at logTe=7.00K
87- 95 E9.4 --- ECS7.20 Effective collision strength at logTe=7.20K
97-105 E9.4 --- ECS7.40 Effective collision strength at logTe=7.40K
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Acknowledgements:
Kanti Aggarwal, K.Aggarwal(at)qub.ac.uk
(End) Patricia Vannier [CDS] 28-May-2008