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arxiv: physics/0611258 · v1 · submitted 2006-11-27 · ⚛️ physics.chem-ph · astro-ph

Rotational Excitation of HC₃N by H₂ and He at low temperatures

classification ⚛️ physics.chem-ph astro-ph
keywords excitationratesrotationaltemperaturesaccurateatomscalculationscollisions
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Rates for rotational excitation of HC3N by collisions with He atoms and H2 molecules are computed for kinetic temperatures in the range 5-20K and 5-100K, respectively. These rates are obtained from extensive quantum and quasi-classical calculations using new accurate potential energy surfaces (PES).

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