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J/ApJS/123/311 Excitation rate coefficients for O III (Aggarwal+, 1999)
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Excitation Rate Coefficients for Fine-Structure Transitions in O III
Aggarwal K.M., Keenan F.P.
<Astrophys. J. Suppl. Ser. 123, 311 (1999)>
=1999ApJS..123..311A (SIMBAD/NED BibCode)
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ADC_Keywords: Atomic physics
Keywords: atomic data - atomic processes
Abstract:
Collision strengths for fine-structure transitions among the levels of
the (1s^2^) 2s^2^2p^2^, 2s2p^3^, 2p^4^, 2s^2^2p3s, 2s^2^2p3p, and
2s^2^2p3d configurations of O III have been computed over a wide range
of energies below 13.0 ryd using the R-matrix program. All partial
waves with L{<=}40 have been included to ensure the convergence of
results. Excitation rate coefficients, in the form of dimensionless
effective collision strengths, have also been computed at temperatures
below 200,000 K. The results are compared with available calculations,
and accuracy of the data is assessed.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 55 46 Target levels of O III and their energies
table2.dat 75 435 Collision strengths for fine-structure
transitions in O III
table4a.dat 115 697 Effective collision strengths at temperatures
below 30,000 K
table4b.dat 115 697 Effective collision strengths at temperatures
above 30,000 K
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- IInd I level index number
6- 7 I2 --- JInd J level index number
9- 23 A15 --- Conf Level electron configuration
25- 34 A10 --- Lev Level term including angular momentum
41- 46 F6.4 Ry EEnerg Experimental threshold energy from
Bashkin & Stoner 1975, p. 176.
50- 55 F6.4 Ry TEnerg Theoretical threshold energy
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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 --- IInd I level index number (see IInd in table1.dat)
4- 5 I2 --- JInd J level index number (see JInd in table1.dat)
7- 15 E9.3 --- CS3.2 Collison strength at 3.2 Ryd
17- 25 E9.3 --- CS4.0 Collison strength at 4.0 Ryd
27- 35 E9.3 --- CS5.0 Collison strength at 5.0 Ryd
37- 45 E9.3 --- CS6.0 Collison strength at 6.0 Ryd
47- 55 E9.3 --- CS8.0 Collison strength at 8.0 Ryd
57- 65 E9.3 --- CS10 Collison strength at 10 Ryd
67- 75 E9.3 --- CS12 Collison strength at 12 Ryd
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Byte-by-byte Description of file: table4a.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- IInd I level index number (see IInd in table1.dat)
4- 5 I2 --- JInd J level index number (see JInd in table1.dat)
8- 16 E9.3 --- CS2500 Effective Collison strength calculated at 2500K
19- 27 E9.3 --- CS5000 Effective Collison strength calculated at 5000K
30- 38 E9.3 --- CS7500 Effective Collison strength calculated at 7500K
41- 49 E9.3 --- CS10k Effective Collison strength calculated at 10 kK
52- 60 E9.3 --- CS12.5k Effective Collison strength calculated at 12.5kK
63- 71 E9.3 --- CS15k Effective Collison strength calculated at 15 kK
74- 82 E9.3 --- CS17.5k Effective Collison strength calculated at 17.5kK
85- 93 E9.3 --- CS20k Effective Collison strength calculated at 20 kK
96-104 E9.3 --- CS25k Effective Collison strength calculated at 25 kK
107-115 E9.3 --- CS30k Effective Collison strength calculated at 30 kK
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Byte-by-byte Description of file: table4b.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- IInd I level index number (see IInd in table1.dat)
4- 5 I2 --- JInd J level index number (see JInd in table1.dat)
8- 16 E9.3 --- CS40k Effective Collison strength calculated at 40kK
19- 27 E9.3 --- CS50k Effective Collison strength calculated at 50kK
30- 38 E9.3 --- CS60k Effective Collison strength calculated at 60kK
41- 49 E9.3 --- CS80k Effective Collison strength calculated at 80kK
52- 60 E9.3 --- CS100k Effective Collison strength calculated at 100kK
63- 71 E9.3 --- CS120k Effective Collison strength calculated at 120kK
74- 82 E9.3 --- CS140k Effective Collison strength calculated at 140kK
85- 93 E9.3 --- CS160k Effective Collison strength calculated at 160kK
96-104 E9.3 --- CS180k Effective Collison strength calculated at 180kK
107-115 E9.3 --- CS200k Effective Collison strength calculated at 200kK
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History:
From ApJ electronic edition
References:
Aggarwal, K.M., & Hibbert, A. 1991, J. Phys. B, 24, 3445
Bashkin, S., & Stoner, J. O. 1975, Atomic Energy Levels and
Grotrian Diagrams, vol. 1 (Amsterdam: North-Holland)
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(End) Greg Schwarz (AAS) 15-Feb-2000