Photodestruction of Diatomic Molecular Ions: Laboratory and Astrophysical Application

• Published in: Molecules (Basel, Switzerland) Vol. 26; no. 1; p. 151
• Main Authors: Srećković, Vladimir A, Ignjatović, Ljubinko M, Dimitrijević, Milan S
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 31-12-2020; MDPI
• Subjects: Absorption spectra; Alkali metals; Astrochemistry; Astronomical Phenomena; astrophysical processes; Cross-sections; diatomic molecules; Diatoms - chemistry; Energy; Investigations; Ions; Laboratories; Metals, Alkali - chemistry; Molecular ions; molecular spectroscopy; Oxides - chemistry; Photodissociation; Plasma; plasma diagnostics; Plasmas (physics); radiative processes; Spectrum analysis; Thermodynamics; Wavelengths; astrophysical processes; radiative processes; atomic and molecular data; plasma diagnostics; planetary chemistry; molecular spectroscopy; planetary geochemistry; diatomic molecules; photodissociation
• ISSN: 1420-3049; 1420-3049
• DOI: 10.3390/molecules26010151

In this work, the processes of photodissociation of some diatomic molecular ions are investigated. The partial photodissociation cross-sections for the individual rovibrational states of the diatomic molecular ions, which involves alkali metals, as well as corresponding data on molecular species and molecular state characterizations, are calculated. Also, the average cross-section and the corresponding spectral absorption rate coefficients for those small molecules are presented in tabulated form as a function of wavelengths and temperatures. The presented results can be of interest for laboratory plasmas as well as for the research of chemistry of different stellar objects with various astrophysical plasmas.