J/A+A/432/731 Effective collision strengths for C II (Wilson+, 2005)
Effective collision strengths for electron impact excitation of C II.
Wilson N.J., Bell K.L., Hudson C.E.
<Astron. Astrophys. 432, 731 (2005)>
=2005A&A...432..731W 2005A&A...432..731W
ADC_Keywords: Atomic physics
Keywords: atomic processes - line: formation - methods: analytical
Description:
The effective collision strengths are presented in this table for
all transitions among the lowest 30 fine-structure levels belonging
to the 2s22p, 2s2p2, 2p3, 2s2p3s, 2s23l (l=s,p,d) and
2s24l (l=s,p,d,f) configurations of C II. The effective collision
strengths have been calculated using the R-matrix method. Each
fine-structure level is assigned an index number in Table 1 of the
manuscript ranging from 1 to 30. These index values are used here in
Table 2 to refer to particular transitions, eg. Index 2-8 denotes the
transition 2s22p 2PO(J=3/2) - 2s2p2 3SE(J=1/2). The effective
collision strengths for each transition are presented in rows for
a number of electron temperatures ranging from log10(T)=3.00 to
log10(T)=5.50.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 51 30 *LS energies relative to the 2s22p 2Po
ground state of C II
table1.tex 120 45 LaTeX version of table 1
table2.dat 104 432 Effective collision strengths for C II
table2.tex 139 467 LaTeX version of table 2
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Note on table1.dat: Also noted is how the LS states split into J-levels and
assignments of level indices to the target states are given. The observed
values are the experimental energy levels compiled by NIST.
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See also:
J/A+A/436/1131 : Al III effective collision strengths (Hudson+ 2005)
J/A+A/430/725 : N II effective collision strengths (Hudson+, 2005)
J/A+A/399/799 : Fe XI trans. effective collision strengths (Aggarwal+, 2003)
J/A+A/410/349 : Fe XV Effective collision strengths (Aggarwal+, 2003)
J/A+A/418/363 : Cl II Effective collision strengths (Tayal+, 2004)
J/A+A/418/1171 : FeXVIII-FeXXIII effective collision strengths (Bautista+ 2004)
J/A+A/429/1117 : Fe XIII effective collision strengths (Aggarwal+, 2005)
J/A+AS/103/273 : C-like ions Effective collision strengths (Lennon+ 1994)
J/A+AS/108/1 : O-like ions Effective collision strengths (Butler+, 1994)
J/A+AS/125/543 : Effective collision strengths for Mg VI (Ramsbottom+ 1997)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 23 A23 --- State LS state
25- 31 F7.5 Ry Epres Present LS energy
34- 40 F7.5 Ry EObs Observed LS energy
43 I1 --- Nj Number split levels (how many J-levels exist
for one configuration)
46- 48 A3 --- J J level
50- 51 I2 --- Index Level index
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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 --- i1 Index numbers of transition
3 A1 --- --- [-]
4- 5 I2 --- i2 Index numbers of transition
7- 14 E8.3 --- ECS3.00 Effective collision at log(T)=3.00
16- 23 E8.3 --- ECS3.25 Effective collision at log(T)=3.25
25- 32 E8.3 --- ECS3.50 Effective collision at log(T)=3.50
34- 41 E8.3 --- ECS3.75 Effective collision at log(T)=3.75
43- 50 E8.3 --- ECS4.00 Effective collision at log(T)=4.00
52- 59 E8.3 --- ECS4.25 Effective collision at log(T)=4.25
61- 68 E8.3 --- ECS4.50 Effective collision at log(T)=4.50
70- 77 E8.3 --- ECS4.75 Effective collision at log(T)=4.75
79- 86 E8.3 --- ECS5.00 Effective collision at log(T)=5.00
88- 95 E8.3 --- ECS5.25 Effective collision at log(T)=5.25
97-104 E8.3 --- ECS5.50 Effective collision at log(T)=5.50
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Acknowledgements: Claire Hudson, c.hudson(at)am.qub.ac.uk
History:
* 14-Mar-2005: Original version
* 11-Jul-2006: An error in table2 was detected by the author,
affecting 78 out of the 432 transitions; this table was replaced.
(End) Claire Hudson [Queens Univ. Belfast] 11-Jul-2006