J/A+A/549/A42 FeXI soft X-ray lines (Del Zanna+, 2013)
Atomic data for astrophysics: Fe XI soft X-ray lines.
Del Zanna G., Storey P.J.
<Astron. Astrophys. 549, A42 (2013)>
=2013A&A...549A..42D 2013A&A...549A..42D
ADC_Keywords: Atomic physics
Keywords: atomic data - Sun: corona - line: identification -
techniques: spectroscopic
Abstract:
We present new large-scale R-matrix (up to n=4) and distorted wave (up
to n=6) scattering calculations for electron collisional excitation of
Fe XI. These data are needed for the analysis of soft X-ray spectra of
astrophysical plasmas, where strong n=4-->n=3 transitions are
present. As found in previous work on Fe X, Fe XII, and Fe XIII,
resonances from within the n=4 levels and cascading from higher levels
significantly increase the intensities of these lines. We provide a
list of the strongest lines, many of which are unidentified. The
present larger model produces intensities for decays from n=3 levels
mostly consistent with our previous work, however significant
enhancements for some lower levels are found, in particular for the
3s23p33d5D which can be used to measure electron temperatures
in the solar corona with the Hinode/EIS spectrometer.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 51 996 Level energies of the RM4 calculation
table2.dat 189 495510 Transition probabilities and thermally averaged
collision strengths for the RM4 calculation
table3.dat 51 2478 Level energies of the DW6 calculation
table4.dat 189 115081 Thermally averaged collision strengths for the
DW6 calculation
table5.dat 32 2922592 Transition probabilities for the DW6 calculation
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See also:
J/A+A/422/731 : Fe X Benchmarking atomic data (Del Zanna+, 2004)
J/A+A/430/331 : Atomic data from the IRON Project. LVI. (Chidichimo+, 2005)
J/A+A/432/1137 : Fe XXIII Benchmarking (Del Zanna+, 2005)
J/A+A/433/717 : IRON Project. LVIII. (Storey+, 2005)
J/A+A/433/731 : Fe XII Benchmarking atomic data (Del Zanna+, 2005)
J/A+A/459/307 : Fe XVIII Benchmarking atomic data (Del Zanna+, 2006)
J/A+A/466/763 : Electron-impact excitation of Fe19+ (Witthoeft+, 2007)
J/A+A/487/1203 : Electron-impact excitation of Be-like Mg (Del Zanna+, 2008)
J/A+A/514/A40 : IRON project. LXVIII (Del Zanna+, 2010)
J/ApJS/190/322 : R-matrix electron-impact excitation of Fe13+ (Liang+, 2010)
J/A+A/537/A22 : Atomic data for X-ray lines of FeVIII & FeIX (O'Dwyer+, 2012)
J/A+A/541/A90 : FeX soft X-ray lines (Del Zanna+, 2012)
J/A+A/543/A139 : Fe XII soft X-ray lines (Del Zanna+, 2012)
J/A+A/543/A144 : Fe XIII soft X-ray lines (Del Zanna+, 2012)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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3- 5 I3 --- Index [1/996] Level index
7- 24 A18 --- Level Level description
25 A1 --- --- [(]
26 I1 --- 2S+1 [1/7] 2S+1 multiplicity
27 A1 --- --- [)]
28 I1 --- L [0/6] L quantum number
29 A1 --- --- [(]
30- 33 F4.1 --- J [0/8] J quantum number
34 A1 --- --- [)]
43- 51 F9.1 cm-1 E Target energy (ab initio)
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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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2- 4 I3 --- i [2/996] Upper level index of the transition
6- 8 I3 --- j [1/995] Lower level index of the transition
10- 17 E8.3 s-1 A Einstein A coefficient
19- 26 E8.3 --- CS1 Averaged collision strength at T=1.0x104K
28- 35 E8.3 --- CS2 Averaged collision strength at T=2.51x104K
37- 44 E8.3 --- CS3 Averaged collision strength at T=5.01x104K
46- 53 E8.3 --- CS4 Averaged collision strength at T=1x105K
55- 62 E8.3 --- CS5 Averaged collision strength at T=2x105K
64- 71 E8.3 --- CS6 Averaged collision strength at T=3.16x105K
73- 80 E8.3 --- CS7 Averaged collision strength at T=5.01x105K
82- 89 E8.3 --- CS8 Averaged collision strength at T=7.94x105K
91- 98 E8.3 --- CS9 Averaged collision strength at T=1x106K
100-107 E8.3 --- CS10 Averaged collision strength at T=1.26x106K
109-116 E8.3 --- CS11 Averaged collision strength at T=2x106K
118-125 E8.3 --- CS12 Averaged collision strength at T=3.16x106K
127-134 E8.3 --- CS13 Averaged collision strength at T=5.01x106K
136-143 E8.3 --- CS14 Averaged collision strength at T=7.94x106K
145-152 E8.3 --- CS15 Averaged collision strength at T=1.26x107K
154-161 E8.3 --- CS16 Averaged collision strength at T=2x107K
163-170 E8.3 --- CS17 Averaged collision strength at T=3.98x107K
172-179 E8.3 --- CS18 Averaged collision strength at T=1x108K
181-189 E9.3 --- Elim High-energy collision strength limit
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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- 5 I4 --- Index [1/2478] Level index
7- 24 A18 --- Level Level description
25 A1 --- --- [(]
26 I1 --- 2S+1 [1/7] 2S+1 multiplicity
27 A1 --- --- [)]
28 A1 --- L [SPDFGHIKP] L level
29 A1 --- --- [(]
30- 33 F4.1 --- J J quantum number
34 A1 --- --- [)]
43- 49 I7 cm-1 E Target energy (ab initio)
50- 51 A2 --- --- [.0]
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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- 4 I4 --- i [2/2478] Upper level index of the transition
6- 8 I3 --- j [1/47] Lower level index of the transition
10- 17 E8.3 s-1 A Einstein A coefficient
19- 26 E8.3 --- CS1 Averaged collision strength at T=1.0x104K
28- 35 E8.3 --- CS2 Averaged collision strength at T=2.51x104K
37- 44 E8.3 --- CS3 Averaged collision strength at T=5.01x104K
46- 53 E8.3 --- CS4 Averaged collision strength at T=1x105K
55- 62 E8.3 --- CS5 Averaged collision strength at T=2x105K
64- 71 E8.3 --- CS6 Averaged collision strength at T=3.16x105K
73- 80 E8.3 --- CS7 Averaged collision strength at T=5.01x105K
82- 89 E8.3 --- CS8 Averaged collision strength at T=7.94x105K
91- 98 E8.3 --- CS9 Averaged collision strength at T=1x106K
100-107 E8.3 --- CS10 Averaged collision strength at T=1.26x106K
109-116 E8.3 --- CS11 Averaged collision strength at T=2x106K
118-125 E8.3 --- CS12 Averaged collision strength at T=3.16x106K
127-134 E8.3 --- CS13 Averaged collision strength at T=5.01x106K
136-143 E8.3 --- CS14 Averaged collision strength at T=7.94x106K
145-152 E8.3 --- CS15 Averaged collision strength at T=1.26x107K
154-161 E8.3 --- CS16 Averaged collision strength at T=2x107K
163-170 E8.3 --- CS17 Averaged collision strength at T=3.98x107K
172-179 E8.3 --- CS18 Averaged collision strength at T=1x108K
181-189 E9.3 --- Elim High-energy collision strength limit
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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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3- 5 I3 --- i [0/999] Lower level index of the transition
7- 10 I4 --- j [2/2478] Upper level index of the transition
13- 21 E9.4 [-] loggf Oscillator strength (gf value)
24- 32 E9.3 s-1 A Einstein A coefficient
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Acknowledgements:
Giulio Del Zanna, gdelzanna (at)spd.aas.org
(End) Patricia Vannier [CDS] 04-Dec-2012