Stark-broadening calculations of singly ionized carbon spectral lines

被引:18
|
作者
Larbi-Terzi, N. [1 ]
Sahal-Brechot, S. [2 ]
Ben Nessib, N. [1 ]
Dimitrijevic, M. S. [2 ,3 ,4 ]
机构
[1] Univ Carthage, Grp Rech Phys Atom & Astrophys, Inst Natl Sci Appl & Technol, Ctr Urbain Nord, Tunis 1080, Tunisia
[2] UPMC, CNRS, Lab Etude Rayonnement & Mat Astrophys, Observ Paris,UMR 8112, F-92195 Meudon, France
[3] Astron Observ, Belgrade 11060 38, Serbia
[4] Isaac Newton Inst Chile, Yugoslavia Branch, Belgrade 11060, Serbia
关键词
atomic data; atomic processes; line: profiles; white dwarfs; IMPACT THEORY; WIDTHS; PROFILES; SHIFT; IONS; ATMOSPHERES; ELECTRONS; PLASMA; ATOMS;
D O I
10.1111/j.1365-2966.2012.20968.x
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Using the semiclassical perturbation approach in the impact approximation, we have obtained Stark-broadening parameters for 148 C ii multiplets. Energy levels and oscillator strengths are taken from the TOPbase data base. Results are obtained as a function of temperature for a set of perturber densities of 1014, 1017 and 1018 cm-3. In addition to electron-impact full half widths and shifts, Stark-broadening parameters due to singly ionized carbon impacts have been calculated. Thus, we have provided Stark-broadening data for the important charged perturbers in the atmospheres of carbon white dwarfs.
引用
收藏
页码:766 / 773
页数:8
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