Quantum and Semiclassical Stark Widths for Ar VII Spectral Lines

被引：16

作者：

Aloui, Rihab ^{[1
]}

Elabidi, Haykel ^{[2
]}

Sahal-Brechot, Sylvie ^{[3
]}

Dimitrijevic, Milan S. ^{[3
,4
]}

机构：

[1] Univ Tunis, Ecole Natl Super Ingenieurs Tunis, GRePAA, Lab Dynam Mol & Mat Photon, Tunis 1008, Tunisia

[2] Univ Carthage, Fac Sci Bizerte, GRePAA, LDMMP, Bizerte 7021, Tunisia

[3] Univ PSL, CNRS, LERMA, Sorbonne Univ,Observ Paris, F-92190 Meudon, France

[4] Astron Observ, Volgina 7, Belgrade 11060, Serbia

来源：

ATOMS | 2018年 / 6卷 / 02期

关键词：

Stark broadening; Ar VII line profiles; stars; white dwarfs; atomic data; scattering;

D O I：

10.3390/atoms6020020

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

We present in this paper the results of a theoretical study of electron impact broadening for several lines of the Ar VII ion. The results have been obtained using our quantum mechanical method and the semiclassical perturbation one. Results are presented for electron density 10(18) cm(-3) and for electron temperatures ranging from 2x10(4) to 5 x 10(5) K required for plasma modeling. Our results have been compared to other semiclassical ones obtained using different sources of atomic data. A study of the strong collisions contributions to line broadening has been performed. The atomic structure and collision data used for the calculations of line broadening are also calculated by our codes and compared to available theoretical results. The agreement found between the two calculations ensures that our line broadening procedure uses adequate structure and collision data.

引用

页数：14

共 33 条

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