J/A+A/399/795 Co III electron-impact broadening parameters (Tankosic+, 2003)
The electron-impact broadening parameters for Co III.
Tankosic D., Popovic L.C., Dimitrijevic M.S.
<Astron. Astrophys. 399, 795 (2003)>
=2003A&A...399..795T 2003A&A...399..795T
ADC_Keywords: Atomic physics
Keywords: atomic processes - line formation - stars: atmospheres -
stars: early-type
Abstract:
In hot star atmospheres, the Stark broadening mechanism is the main
pressure broadening mechanism. An interesting application where such a
mechanism is of interest is the modeling and investigation of hot star
spectra, stellar atmospheres and subphotospheric layers. Consequently,
for the investigation and modeling of the Hg-Mn star and other type of
hot star atmospheres, the Stark broadening parameters for Co III
spectral lines may be of interest. Here we present Stark broadening
data for 20 Co III spectral lines (from a6D-z6Do and
a6D-z6Fo Co III multiplets), as a function of temperature,
calculated by using the modified semi-empirical approach. The
importance of the electron-impact effect in the case of the Co III
194.98nm line for several stellar atmosphere models has been tested.
Description:
table1.dat file contains Electron-impact broadening parameters for
Co III, calculated within the modified semi-empirical approach
(Dimitrijevic and Konjevic, 1980, J. Quant. Spectrosc. Radiat.
Transfer 24, 454, Dimitrijevic and Krsljanin, 1986A&A...165..269D 1986A&A...165..269D,
Popovic and Dimitrijevic, 1996, Phys. Scr., 53, 325) for a perturber
density of 1017cm-3 and temperatures from 10,000 to 300,000 K.
Transitions and wavelengths (in Å) are also given. In several
cases, when our results for two or three lines from the same multiplet
are identical, J quantum numbers and the corresponding wavelengths of
such lines are also given. Stark broadening parameters for other
perturber densities may be obtained by linear scaling, taking into
account that for sufficiently higher densities a correction for Debye
shielding effect (Griem, 1974, Spectral Line Broadening by Plasmas
(Academic Press, New York) should be applied.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 80 120 Electron-impact broadening parameters for Co III
table1.tex 80 192 LateX version of table1
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See also:
J/A+A/365/656 : Zr II & III electron-impact broadening (Popovic+, 2001)
VI/98 : Stark broadening of H lines (Stehle+, 1999)
J/A+AS/102/607 : Stark widths of FeII lines (Puric+ 1993)
J/A+AS/105/243 : Stark broadening of BeI lines (Dimitrijevic+ 1994)
J/A+AS/105/245 : Stark broadening Al XI and Si XII (Dimitrijevic+ 1994)
J/A+AS/107/349 : Stark broadening X. (Dimitrijevic+, 1994)
J/A+AS/109/551 : Stark broadening. XII. OIV + OV (Dimitrijevic+, 1995)
J/A+AS/113/579 : Stark broadening (Shoening+, 1995)
J/A+AS/115/351 : Stark broadening. XIII. C V and P V (Dimitrijevic+, 1996)
J/A+AS/116/359 : Xe II lines Stark broadening (Popovic+, 1996)
J/A+AS/117/127 : Solar MgI lines Stark broadening (Dimitrijevic+, 1996)
J/A+AS/119/369 : Stark broadening. XIV: Be III and B III (Dimitrijevic+, 1996)
J/A+AS/119/529 : Stark broadening : Sr I (Dimitrijevic+, 1996)
J/A+AS/120/373 : Sc II, Y II + Zr II Stark width (Popovic+ 1996)
J/A+AS/122/163 : Ba I + Ba II Stark broadening (Dimitrijevic+ 1997)
J/A+AS/122/285 : VCS Stark broadening tables for hydrogen (Lemke, 1997)
J/A+AS/122/533 : Stark broadening of P IV spectral lines (Dimitrijevic+ 1997)
J/A+AS/127/295 : Stark broadening of Kr II lines (Popovic+ 1998)
J/A+AS/127/543 : Stark broadening of S V lines (Dimitrijevic+ 1998)
J/A+AS/128/203 : Stark broadening of Mn, Ga + Ge multiplets (Popovic+ 1998)
J/A+AS/128/359 : Stark broadening of Ca IX and Ca X lines (Dimitrijevic+ 1998)
J/A+AS/129/155 : Si XI + Si XIII lines Stark broadening (Dimitrijevic+ 1998)
J/A+AS/130/539 : Stark broadening of Na X (Dimitrijevic+ 1998)
J/A+AS/131/141 : Stark broadening of O VII and Mg XI (Dimitrijevic+ 1998)
J/A+AS/131/143 : Stark broadening of Sc X+XI, Ti XI+XII (Dimitrijevic+ 1998)
J/A+AS/133/227 : Stark broadening of K VIII and K IX (Dimitrijevic+ 1998)
J/A+AS/140/191 : Stark broadening of Ca I (Dimitrijevic+, 1999)
J/A+AS/140/193 : Stark broadening of Zn I (Dimitrijevic+, 1999)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 31 A31 --- Trans Transition
33- 38 F6.2 0.1nm lambda1 First wavelength
40- 45 F6.2 0.1nm lambda2 ? Second wavelength
47- 52 F6.2 0.1nm lambda3 ? Third wavelength
54- 59 I6 K Temp Temperatures
61- 69 E9.3 nm FWHM FWHM for electron impacts (1)
71- 80 E10.3 nm d shift for electron impacts (2)
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Note (1): FWHM denotes Full Width at Half Maximum
Note (2): A positive (resp. negative) shift is towards the red (resp. blue)
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Acknowledgements: Milan Dimitrijevic
(End) Patricia Bauer [CDS] 13-Feb-2003