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Gas Phase Study of C+Reactions of Interstellar Relevance | Synapse

October 17, 2008Open Access

Gas Phase Study of C+Reactions of Interstellar Relevance

OMO. Martı́nezUniversidad Complutense de Madrid NBNicholas B. BettsUniversity of Colorado Boulder SVStephanie M. VillanoColorado School of Mines

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Abstract

The current uncertainty in many reaction rate constants causes difficulties in providing satisfactory models of interstellar chemistry. Here we present new measurements of the rate constants and product branching ratios for the gas phase reactions of C+ with NH3, CH4, O2, H2O, and C2H2, using the flowing afterglow-selected ion flow tube (FASIFT) technique. Results were obtained using two instruments that were separately calibrated and optimized; in addition, low ionization energies were used to ensure formation of ground-state C+, the purities of the neutral reactants were verified, and mass discrimination was minimized.

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synapsesocial.com/papers/6a15ed43557f83931ae3d28c https://doi.org/https://doi.org/10.1086/591548

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