J/A+A/417/375 Cd III Stark broadening parameters (Milovanovic+, 2004)
Importance of collisions with charged particles for stellar UV line shapes:
Cd III.
Milovanovic N., Dimitrijevic M.S., Popovic L.C., Simic Z.
<Astron. Astrophys. 417, 375 (2004)>
=2004A&A...417..375M 2004A&A...417..375M
ADC_Keywords: Atomic physics
Keywords: atomic processes - line: formation - stars: atmospheres -
stars: early-type - stars: white dwarfs
Abstract:
Stark broadening parameters, widths and shifts, for 84 spectral
lines of doubly-ionized cadmium (Cd III) have been calculated using
the modified semi-empirical approach (MSE). Calculated spectral
lines belong to the transitions 4d95s-4d95p and 4d95p-4d95d.
Widths and shifts of the spectral lines are given for temperature
range of 5000K-60000K and an electron density of 1023m-3. The
influence of collisions with charged particles on Cd III UV stellar
lines along the HR diagram is discussed. Compared to the Doppler
broadening, the influence of the Stark broadening mechanism is more
important for deeper atmospheric layers and for larger values of
logg. Stark broadening does not depend on turbulent velocity for the
considered stellar model of a standard main sequence hot star of A0
spectral type. The influence of the Stark widths for standard models
of DA and DB white dwarfs is also discussed.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 62 588 *Stark full widths and shifts for Cd III lines
calculated within the modified semi-empirical
approach
table2.dat 62 84 Stark widths in rad/s per electron for T=10000K
and constants logA0 and A1 as described in paper
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Note on table1.dat: The electron density is 10-23m-3
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See also:
VI/82 : Stark broadening of H lines (Stehle 1995)
J/A+A/400/791 : Stark broadening of Be III lines (Dimitrijevic+, 2003)
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 Ne VIII and Na IX (Dimitrijevic+, 1994)
J/A+AS/109/551 : Stark broadening. XII. OIV + OV (Dimitrijevic+, 1995)
J/A+AS/113/579 : Stark broadening of NV (Shoening+, 1995)
J/A+AS/115/351 : Stark broadening. XIII. C V and P V (Dimitrijevic+, 1996)
J/A+AS/116/359 : Stark broadening of Xe II lines (Popovic+, 1996)
J/A+AS/117/127 : Stark broadening of solar MgI lines (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/122/163 : Stark broadening of Ba I + Ba II (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 : Stark broadening Si XI + Si XIII lines (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 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)
J/A+A/400/791 : Stark broadening of Be III (Dimitrijevic+ 2003)
J/A+A/423/397 : Stark broadening of Si V (Ben Nessib+, 2004)
J/A+A/425/1147 : Stark broadening of Ga I (Dimitrijevic+, 2004)
J/A+A/441/391 : Stark broadening of Cd I spectral lines (Simic+, 2005)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 7 F7.3 nm lambda Wavelength
9- 35 A27 --- Trans Transition
37- 41 I5 K T Temperature
43- 50 E8.3 nm FWHM FWHM for electron impacts (1)
52- 60 E9.3 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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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 7 F7.3 nm lambda Wavelength
9- 35 A27 --- Trans Transition
37- 44 F8.5 [rad/s] logw Stark width per electron (1)
46- 53 F8.5 --- logA0 Constant A0 (2)
55- 62 F8.5 --- A1 Constant A1 (2)
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Note (1): logw denotes logarithm of Stark width per electron for T=10000K
Note (2): w/N = A0*TA1, with the electron density N=1013m-3 and T=10000K
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Acknowledgements: Nenad Milovanovic
(End) Patricia Bauer [CDS] 22-Mar-2004