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

Abstract

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.