The Rydberg atom-atom collisions: Chemi-ionization cross-sections and rate coefficients in alkali-metal astrophysical and low-temperature laboratory plasmas

Autor:	Vladimir A. Srećković, Ljubinko M. Ignjatović, Milan S. Dimitrijević, Veljko Vujčić, Miodrag Malović, Darko Jevremović, Nikolai N. Bezuglov, Andrey N. Klyucharev
Rok vydání:	2023
Předmět:	Astrophysical plasmas Atmospheric Science Aerospace Engineering Astronomy and Astrophysics Atomic and molecular data Molecular ions Absorption Plasma diagnostics Geophysics Space and Planetary Science Radiative processes General Earth and Planetary Sciences Physics::Atomic Physics Spectroscopy
Zdroj:	Advances in Space Research
ISSN:	0273-1177
DOI:	10.1016/j.asr.2022.04.069
Popis:	In this manuscript, the chemi-ionization (CI) processes in atom - Rydberg atom collisions are examined. We obtained the cross-sections, as well as rate coefficients for CI processes in potassium and sodium collisions for principal quantum numbers 5⩽n⩽25 in the 500 K ⩽T⩽1500 K temperature region. The presented data could be useful for the improvement of analysis and modelling of weakly ionized layers of different atmospheres and cosmic objects where these and other CI processes could change excited state populations and the free electron density, consequently affecting the optical characteristics.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19bbb8cb1be3e19a47e25c41ab6f7430 https://doi.org/10.1016/j.asr.2022.04.069 Zobrazit plný text záznamu Full Text from ScienceDirect