Influence of Rydberg atom-atom collisional and (n-n')-mixing processes on optical properties of astrophysical and low-temperature laboratory plasmas

23rd International Conference on Spectral Line Shapes

Mihajlov, A.A.^1 ; Srekovi, V.A.^1 ; Ignjatovi, Lj M.^1 ; Simi, Z.^2 ; Dimitrijevi, M.S.^2,3,4

University of Belgrade, Institute of Physics, P. O. Box 57, Belgrade

11001, Serbia^1

Astronomical Observatory, Volgina 7, Belgrade 74

11160, Serbia^2

IHIS-Technoexperts, Beanijska 23, Zemun

11080, Serbia^3

Observatoire de Paris, Meudon Cedex

92195, France^4

关键词: Chemi-ionization process;    Collisional system;    Dwarf atmospheres;    Laboratory plasma;    Low temperatures;    Principal quantum numbers;    Rydberg-atom collisions;    Temperature regions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/810/1/012058/pdf
DOI  :  10.1088/1742-6596/810/1/012058

来源: IOP

【 摘 要 】

Here, we will consider the influence of the (n-n')-mixing processes during atom Rydberg-atom collision processes on the intensity of chemi-ionization process. We will take into account H(1s) + H∗(n) and He(1s2) + He∗(n,l) collisional systems, where the principal quantum number n >> 1. The corresponding calculations of the chemi-ionization rate coefficients are performed for the temperature region characteristic for the solar and DB white dwarf atmosphere.