Publication Date:
2015-03-10
Description:
The thermal rate constant for production of carbon monoxide, in its electronic ground state, through radiative association of carbon (C) and oxygen (O) atoms is computed. A combination of quantum and classical dynamics methods are employed. In particular, we investigate the importance of the mechanism where C and O approach each other on the 2 1 + potential energy curve. Accounting for this reaction turns out to add about 75 per cent to the rate constant at 10 000 K. We expect the results to be important for studies of the chemistry in interstellar gas, particularly in metal-rich ejecta of supernovae. Since a significant isotope effect has been predicted previously both stable carbon isotopes 12 C and 13 C are considered in the present study.
Print ISSN:
0035-8711
Electronic ISSN:
1365-2966
Topics:
Physics
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