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Formation of CO+ by radiative association II
Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science. (Tillämpad fysik)ORCID iD: 0000-0002-7629-0169
Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden.
Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic.
2020 (English)In: Monthly notices of the Royal Astronomical Society, ISSN 0035-8711, E-ISSN 1365-2966, Vol. 492, no 3, p. 3794-3802Article in journal (Refereed) Published
Abstract [en]

Radiative association of an oxygen atom with a carbon cation is investigated using quantal and semiclassical methods. The total rate coefficient for spontaneous radiative association of O(2s22p4, 3P) with C+(2s22p, 2P) on the doublet manifold is determined from the corresponding cross-sections. The cross-sections for the 12 Σ - → A2 II, 22 Σ - → A2II, and C2 Δ → A2II continuum-bound processes are calculated either semiclassically, in combination with the Breit-Wigner approach, or fully quantum mechanically. In the temperature range 10-10 000 K, our recommended total rate coefficient, obtained from these calculations and the data of Zámecniková et al. (2019), slowly increases from 7.5 × 10-18 cm3s-1 to 2.1 × 10-17 cm3s-1. Corresponding aspects of the CO+ and CO formations in SN 1987A are discussed

Place, publisher, year, edition, pages
Oxford University Press, 2020. Vol. 492, no 3, p. 3794-3802
Keywords [en]
astrochemistry, molecular processes, radiation mechanisms: general, supernovae: general, ISM: molecules
National Category
Astronomy, Astrophysics and Cosmology Atom and Molecular Physics and Optics Other Physics Topics
Research subject
Applied Physics
Identifiers
URN: urn:nbn:se:ltu:diva-77537DOI: 10.1093/mnras/stz3641ISI: 000518143200052Scopus ID: 2-s2.0-85084543967OAI: oai:DiVA.org:ltu-77537DiVA, id: diva2:1388970
Note

Validerad;2020;Nivå 2;2020-02-18 (johcin)

Available from: 2020-01-28 Created: 2020-01-28 Last updated: 2020-05-28Bibliographically approved

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Gustafsson, Magnus

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