J/A+AS/142/85 Recombination coefficients for C II lines (Davey+, 2000)
Recombination coefficients for C II
Davey A.R., Storey P.J., Kisielius R.
<Astron. Astrophys. Suppl. Ser. 142, 85 (2000)>
=2000A&AS..142...85D 2000A&AS..142...85D
ADC_Keywords: Atomic physics - Planetary nebulae
Keywords: atomic data - line: formation - H II regions -
planetary nebulae: general
Abstract:
Effective recombination coefficients are given for C II transitions
between doublet states. The calculations are carried out in the
temperature range 500-20000K and for an electron density of
104cm-3. The effects of electron collisions on the excited states
are included. The necessary bound-bound and bound-free radiative data
are obtained from a new R-matrix calculation in which photoionization
resonances are fully delineated, thereby accurately incorporating the
effects of both radiative and dielectronic recombination. The R-matrix
calculation includes all bound states with principal quantum number
n≤15 and total orbital angular momentum L≤4. The effect of moving
the resonance features to their experimentally determined positions is
also investigated and found to be important at low temperatures.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 41 43 Energies of even parity C+ bound states relative
to the ionization threshold
table2.dat 42 29 Energies of odd parity C+ bound states relative
to the ionization threshold
table3.dat 99 164 Effective recombination coefficients [10-14cm3/s]
at electron density Ne=104[cm-3],
temperature range Te=3500-20000K
table4.dat 99 231 Effective recombination coefficients [10-14cm3/s]
at electron density Ne=104[cm-3],
temperature range Te=500-2500K
table5.dat 95 143 Fitting coefficients and maximum fitting errors (%)
for effective recombination coefficients
Electron density Ne=104[cm-3],
temperature range Te=5000-20000K
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See also:
J/A+AS/133/257 : Recombination coefficients for NeII lines (Kisielius+ 1998)
J/A+AS/135/359 : HI and HeII fine structure components (Clegg+ 1999)
J/A+AS/137/157 : O III recombination coefficients (Kisielius+, 1999)
J/A+A/387/1135 : NII effective recombination coefficients (Kisielius+, 2002)
Byte-by-byte Description of file: table1.dat table2.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- State Electronic configuration
9- 11 I3 --- SP1 2S+1 of term
12- 14 I3 --- LP1 L of term
15- 17 I3 --- PP1 Parity (0 for even, 1 for odd) of term
21- 29 F9.6 Ry Ecal Calculated energy
33- 41 F9.6 Ry Eexp ? Experimental energy
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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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2 A1 --- --- [(]
3 I1 --- SP1 2S+1 of upper term parent state
4 I1 --- LP1 L of upper term parent state
5 I1 --- PP1 Parity of upper term parent state (1)
6 A1 --- --- [)]
7- 8 I2 --- n1 Principal quantum number of outer electron
9 A1 --- l1 Orbital quantum number of outer electron in
spectroscopic notation
12 I1 --- S1 2S+1 of upper term
13 I1 --- L1 L of upper term
14 I1 --- P1 Parity of upper term (1)
16 A1 --- --- [-]
18 A1 --- --- [(]
19 I1 --- SP2 2S+1 of lower term parent state
20 I1 --- LP2 L of lower term parent state
21 I1 --- PP2 Parity of lower term parent state (1)
22 A1 --- --- [)]
23- 24 I2 --- n2 Principal quantum number of outer electron
25 A1 --- l2 Orbital quantum number of outer electron in
spectroscopic notation
28 I1 --- S2 2S+1 of lower term
29 I1 --- L2 L of lower term
30 I1 --- P2 Parity of lower term (1)
34 A1 --- Case Plasma state case
35- 42 F8.1 nm Wavel Transition wavelength
44- 51 F8.3 10-14cm+3/s 3500 Effective recombination coeff. at Te = 3500K
52- 59 F8.3 10-14cm+3/s 5000 Effective recombination coeff. at Te = 5000K
60- 67 F8.3 10-14cm+3/s 7500 Effective recombination coeff. at Te = 7500K
68- 75 F8.3 10-14cm+3/s 10000 Effective recombination coeff. at Te = 10000K
76- 83 F8.3 10-14cm+3/s 12500 Effective recombination coeff. at Te = 12500K
84- 91 F8.3 10-14cm+3/s 15000 Effective recombination coeff. at Te = 15000K
92- 99 F8.3 10-14cm+3/s 20000 Effective recombination coeff. at Te = 20000K
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Note (1): 0 for even, 1 for odd
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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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2 A1 --- --- [(]
3 I1 --- SP1 2S+1 of upper term parent state
4 I1 --- LP1 L of upper term parent state
5 I1 --- PP1 Parity of upper term parent state (1)
6 A1 --- --- [)]
7- 8 I2 --- n1 Principal quantum number of outer electron
9 A1 --- l1 Orbital quantum number of outer electron in
spectroscopic notation
12 I1 --- S1 2S+1 of upper term
13 I1 --- L1 L of upper term
14 I1 --- P1 Parity of upper term (1)
16 A1 --- --- [-]
18 A1 --- --- [(]
19 I1 --- SP2 2S+1 of lower term parent state
20 I1 --- LP2 L of lower term parent state
21 I1 --- PP2 Parity of lower term parent state (1)
22 A1 --- --- [)]
23- 24 I2 --- n2 Principal quantum number of outer electron
25 A1 --- l2 Orbital quantum number of outer electron in
spectroscopic notation
28 I1 --- S2 2S+1 of lower term
29 I1 --- L2 L of lower term
30 I1 --- P2 Parity of lower term (1)
34 A1 --- Case Plasma state case
35- 42 F8.1 nm Wavel Transition wavelength in nm
44- 51 F8.3 10-14cm+3/s 500 Effective recombination Ceoff. at Te = 500K
52- 59 F8.3 10-14cm+3/s 750 Effective recombination Ceoff. at Te = 750K
60- 67 F8.3 10-14cm+3/s 1000 Effective recombination Ceoff. at Te = 1000K
68- 75 F8.3 10-14cm+3/s 1250 Effective recombination Ceoff. at Te = 1250K
76- 83 F8.3 10-14cm+3/s 1500 Effective recombination Ceoff. at Te = 1500K
84- 91 F8.3 10-14cm+3/s 2000 Effective recombination Ceoff. at Te = 2000K
92- 99 F8.3 10-14cm+3/s 2500 Effective recombination Ceoff. at Te = 2500K
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Note (1): 0 for even, 1 for odd
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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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2 A1 --- --- [(]
3 I1 --- SP1 2S+1 of upper term parent state
4 I1 --- LP1 L of upper term parent state
5 I1 --- PP1 Parity of upper term parent state (1)
6 A1 --- --- [)]
7- 8 I2 --- n1 Principal quantum number of outer electron
9 A1 --- l1 Orbital quantum number of outer electron
in spectroscopic notation
12 I1 --- S1 2S+1 of upper term
13 I1 --- L1 L of upper term
14 I1 --- P1 Parity of upper term (1)
16 A1 --- --- [-]
18 A1 --- --- [(]
19 I1 --- SP2 2S+1 of lower term parent state
20 I1 --- LP2 L of lower term parent state
21 I1 --- PP2 Parity of lower term parent state (1)
22 A1 --- --- [)]
23- 24 I2 --- n2 Principal quantum number of outer electron
25 A1 --- l2 Orbital quantum number of outer electron
in spectroscopic notation
28 I1 --- S2 2S+1 of lower term
29 I1 --- L2 L of lower term
30 I1 --- P2 Parity of lower term (1)
34 A1 --- Case Plasma state case
35- 42 F8.1 nm Wavel Transition wavelength
44- 52 F9.4 --- a Fitting coefficient a
53- 61 F9.4 --- b Fitting coefficient b
62- 70 F9.4 --- c Fitting coefficient c
71- 79 F9.4 --- d Fitting coefficient d
80- 88 F9.4 --- f Fitting coefficient f
89- 95 F7.2 % Err Maximum fitting error (in percent)
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Note (1): 0 for even, 1 for odd
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Acknowledgements: Romas Kisielius
(End) Patricia Bauer [CDS] 15-Oct-1999