J/A+A/503/293 Stark broadening of He447.1nm line (Gigosos+, 2009)
Stark broadening tables for the Helium 447.1 nm line.
Application to weakly coupled plasmas diagnostics.
Gigosos M.A., Gonzalez M.A.
<Astron. Astrophys. 503, 293 (2009)>
=2009A&A...503..293G 2009A&A...503..293G
ADC_Keywords: Atomic physics
Keywords: Stark broadening - plasma spectroscopy - plasma diagnosis -
computer simulation
Abstract:
Stark broadening of the 447.1nm line of neutral helium in a weakly
coupled plasma has been studied. This spectral line has a very close
forbidden component. This means it is very sensitive to the plasma
electron density, which is similar to hydrogen lines, for which the
Stark effect is linear.
The aim of this work is to supply information to be used in the
spectroscopic diagnostics of plasmas.
Description:
Tables contain the are anormalized Stark broadened spectral profiles of
the He I 447.1nm line. Doppler effect has not been included in the
profiles. For a fixed electron density, ranging from 10+21m-3 to
10+24m-3, data corresponding to three different reduced masses of
the emitter perturber pair, µ, are given. The values of mu are
µ=0.8, 2.0 and 4.0, in units of the proton mass. For each case of
µ the profiles for different electron temperatures are given in
different columns.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tables.dat 161 900 Helium I 447.1 nm Stark profiles
(tables 2-11 of the paper)
tab.tar 981 1070 Tar file of the original tables (one per logNe)
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See also:
VI/98 : Stark broadening of H lines (Stehle+, 1999)
J/A+A/376/1113 : Line ratios for helium-like ions (Porquet+, 2001)
J/ApJS/170/251 : Multiplet table for neutral helium (Drake+, 2007)
Byte-by-byte Description of file: tables.dat
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Bytes Format Units Label Explanations
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1- 5 F5.2 [m-3] logNe Electron density (1)
9- 17 E9.4 nm Dlambda Wavelength detuning from the
unperturbed wavelength
22- 29 E8.4 --- IDL0.8/5 ? Stark profile for mu=0.8 and Te=5000K (2)
34- 41 E8.4 --- IDL0.8/10 ? Stark profile for mu=0.8 and Te=10000K (2)
46- 53 E8.4 --- IDL0.8/20 Stark profile for mu=0.8 and Te=20000K (2)
58- 65 E8.4 --- IDL0.8/40 Stark profile for mu=0.8 and Te=40000K (2)
70- 77 E8.4 --- IDL2/5 ? Stark profile for mu=2 and Te=5000K (2)
82- 89 E8.4 --- IDL2/10 ? Stark profile for mu=2 and Te=10000K (2)
94-101 E8.4 --- IDL2/20 Stark profile for mu=2 and Te=20000K (2)
106-113 E8.4 --- IDL2/40 Stark profile for mu=2 and Te=40000K (2)
118-125 E8.4 --- IDL4/50 ? Stark profile for mu=4 and Te=5000K (2)
130-137 E8.4 --- IDL4/10 ? Stark profile for mu=4 and Te=10000K (2)
142-149 E8.4 --- IDL4/20 Stark profile for mu=4 and Te=20000K (2)
154-161 E8.4 --- IDL4/40 Stark profile for mu=4 and Te=40000K (2)
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Note (1): Electron density and µ (reduced mass of the emitter-ionic
perturber, in units of proton mass) and T (plasma temperature, same
for ions and electrons) values:
21.00 = data for mu=0.8, 2, 4, Te=5000, 10000, 20000, 40000K
21.33 = data for mu=0.8, 2, 4, Te=5000, 10000, 20000, 40000K
21.67 = data for mu=0.8, 2, 4, Te=5000, 10000, 20000, 40000K
22.00 = data for mu=0.8, 2, 4, Te=5000, 10000, 20000, 40000K
22.33 = data for mu=0.8, 2, 4, Te=5000, 10000, 20000, 40000K
22.67 = data for mu=0.8, 2, 4, Te=10000, 20000, 40000K
23.00 = data for mu=0.8, 2, 4, Te=10000, 20000, 40000K
23.33 = data for mu=0.8, 2, 4, Te=10000, 20000, 40000K
23.67 = data for mu=0.8, 2, 4, Te=20000, 40000K
24.00 = data for mu=0.8, 2, 4, Te=20000, 40000K
Note (2): Area normalized Stark broadened spectral profiles. Doppler
effect has not been included in the profiles. mu is the reduced
mass in units of proton mass.
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Acknowledgements:
Marco A. Gigosos, gigosos(at)coyanza.opt.cie.uva.es
(End) Patricia Vannier [CDS] 18-Jun-2009