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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
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:
FileName Lrecl Records Explanations
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)
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
Bytes Format Units Label Explanations
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)
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.
Acknowledgements: Marco A. Gigosos, gigosos(at)coyanza.opt.cie.uva.es
(End) Patricia Vannier [CDS] 18-Jun-2009
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