J/A+A/410/349 Effective collision strengths in Fe XV (Aggarwal+, 2003)
Effective collision strengths for transitions in Fe XV.
Aggarwal K.M., Keenan F.P., Msezane A.Z.
<Astron. Astrophys. 410, 349 (2003)>
=2003A&A...410..349A 2003A&A...410..349A
ADC_Keywords: Atomic physics
Keywords: atomic data - atomic processes
Abstract:
Collision strengths for transitions among the energetically lowest 53
fine-structure levels belonging to the (1s2 2s2 2p6) 3l2,
3l3l', 3s4l and 3p4s configurations of Fe XV are computed, over an
electron energy range below 160Ryd, using the Dirac Atomic R-matrix
Code (DARC) of Norrington & Grant (2003, Comput. Phys. Commun., in
prep.). Effective collision strengths, obtained after integrating the
collision strengths over a Maxwellian distribution of electron
energies, have also been calculated. These results of effective
collision strengths are tabulated for all 1378 inelastic transitions
over a wide temperature range of 105 to 107K. Comparisons are also
made with other R-matrix calculations and the accuracy of the results
is assessed.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 68 53 Target levels of Fe XV and their threshold
energies (in Ryd).
table4.dat 114 1378 Effective Collision Strengths for Transitions
in Fe XV
table4.tex 143 1869 LaTeX version of table4
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See also:
J/ApJS/121/265 : Oscillator Strengths and Radiative Rates for FeXV (Deb+, 1999)
J/ApJS/123/311 : Excitation rate coefficients for O III (Aggarwal+, 1999)
J/A+A/399/799 : Fe XI effective collision strengths (Aggarwal+, 2003)
J/A+A/407/769 : Excitation rates for transitions in Ca XV (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/429/1117 : Fe XIII effective collision strengths (Aggarwal+, 2005)
J/A+A/436/1131 : Al III effective collision strengths (Hudson+ 2005)
J/A+A/439/1215 : Fe X effective collision strengths (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)
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 Index number
4- 24 A21 --- Config Configuration
26- 35 A10 --- Level Level
37- 43 F7.4 Ry Expt ? Theoretical experimental energy
44 A1 --- r_Expt References for theoretical experimental
energy (1)
46- 52 F7.4 Ry GRASP ? GRASP threshold energy (this paper)
54- 60 F7.4 Ry CAHF ? Configuration Average Hartree-Fock
experimental energy
62- 68 F7.4 Ry SS ? SuperStructure experimental energy
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Note (1): References:
a: Churilov et al. (1985, Phys. Scr., 32, 501)
b: Churilov et al. (1989, Phys. Scr., 40, 625)
c: Litzen & Redfors (1987, Phys. Scr., 36, 895)
d: Sugar & Corliss (1985, Cat. VI/74)
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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 Transition index for initial level
4- 5 I2 --- j Transition index for final level
7- 14 E8.3 --- ECS5.00 Effective collision strength at logTe=5.00K
17- 24 E8.3 --- ECS5.20 Effective collision strength at logTe=5.20K
27- 34 E8.3 --- ECS5.40 Effective collision strength at logTe=5.40K
37- 44 E8.3 --- ECS5.60 Effective collision strength at logTe=5.60K
47- 54 E8.3 --- ECS5.80 Effective collision strength at logTe=5.80K
57- 64 E8.3 --- ECS6.00 Effective collision strength at logTe=6.00K
67- 74 E8.3 --- ECS6.20 Effective collision strength at logTe=6.20K
77- 84 E8.3 --- ECS6.40 Effective collision strength at logTe=6.40K
87- 94 E8.3 --- ECS6.60 Effective collision strength at logTe=6.60K
97-104 E8.3 --- ECS6.80 Effective collision strength at logTe=6.80K
107-114 E8.3 --- ECS7.00 Effective collision strength at logTe=7.00K
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Acknowledgements: Kanti Aggarwal
(End) Patricia Bauer [CDS] 03-Oct-2003