Kinetic rate coefficients for electron-driven collisions with CH${}^{+}$: dissociative recombination and rovibronic excitation

Abstract

Cross sections and rate coefficients for rovibronic excitation of the CH${}^{+}$ ion by electron impact and dissociative recombination of CH${}^{+}$ with electrons are evaluated using a theoretical approach combining an R-matrix method and molecular quantum defect theory. The method has been developed and tested, comparing the theoretical results with the data from the recent Cryogenic Storage Ring experiment. The obtained cross sections and rate coefficients evaluated for temperatures from 1~K to 10,000~K could be used for plasma modeling in interpretation of astrophysical observations and also in technological applications where molecular hydrocarbon plasma is present.

References in corpus (4)

• A Far Ultraviolet Spectroscopic Explorer Survey of Interstellar Molecular Hydrogen in the Galactic Disk
• Dissociative recombination of cold HeH${}^{+}$ ions
• Experimental determination of the dissociative recombination rate coefficient for rotationally-cold CH${}^{+}$ and its implications for the diffuse cloud chemistry
• Dissociative recombination of CH${}^{+}$ molecular ion induced by very low energy electrons

Cited by in corpus (4)

• PDRs4All XI. Detection of infrared CH${}^{+}$ and CH${}_3^{+}$ rovibrational emission in the Orion Bar and disk d203-506: evidence of chemical pumping
• Chemistry and ro-vibrational excitation of HeH${}^{+}$ in the Planetary Nebula NGC 7027
• Competing Ionization and Dissociation: Extension of the energy-dependent frame transformation to the gerade symmetry of H${}_2$
• Dissociative Recombination of CF${}^{+}$