The Effect of Rapid Neutral-Neutral Reactions on Chemical Models of Dense Interstellar Clouds
Abstract
Recent experiments on rapid neutral-neutral reactions involving the radical CN at low temperature and the neutral C atom at room temperature suggest that atom-neutral and radical-neutral reactions may be generally more rapid at low temperature than hitherto thought. We have included a variety of rapid neutral-neutral reactions in our gas-phase chemical models of quiescent, dense interstellar clouds. We find the calculated abundances of many molecules to be greatly changed from previous values. In particular, the peak `early-time' abundances of organic molecules are reduced.
- Publication:
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Monthly Notices of the Royal Astronomical Society
- Pub Date:
- May 1994
- DOI:
- 10.1093/mnras/268.2.335
- Bibcode:
- 1994MNRAS.268..335H
- Keywords:
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- molecular processes - ISM: clouds - ISM: molecules