CO Dissociation Induced by 1 keV/u Ar2+ Ion

CO is one of the important molecules in dense molecular clouds, and its dissociation induced by cosmic ray heavy ions is a fundamental process for molecular breaking up and rearrangement in astronomical networks. Extensive laboratory simulations are required to understand molecular evolution in astr...

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Bibliographic Details
Published inAtoms Vol. 12; no. 10; p. 53
Main Authors Zhang, Chijun, Zhang, Ruitian, Zhang, Shaofeng, Ma, Xinwen
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.10.2024
Subjects
Autoionization
CO dissociation
COLTRIMS
Cosmic rays
Efficiency
Electron capture
Energy
Heavy ions
Investigations
Kinetic energy
kinetic energy release
metastable states
Molecular clouds
Recoil ions
Spectrum analysis
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Summary:CO is one of the important molecules in dense molecular clouds, and its dissociation induced by cosmic ray heavy ions is a fundamental process for molecular breaking up and rearrangement in astronomical networks. Extensive laboratory simulations are required to understand molecular evolution in astrophysical contexts. Here, we investigate the CO dissociation induced by 1 keV/u Ar2+ using cold target recoil ion momentum spectroscopy. Kinetic energy release for double electron capture Ar2++CO→Ar0+C++O+ and transfer ionization Ar2++CO→Ar++C++O++e− was obtained. The dissociation mechanisms are attributed to different KER distributions. The autoionization process is identified below the CO2+ double ionization threshold.
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ISSN:2218-2004
2218-2004
DOI:10.3390/atoms12100053