Formation of carbon monoxide by radiative association: a quantum dynamical study

Details Formation of carbon monoxide by radiative association: a quantum dynamical study Formation of carbon monoxide by radiative association: a quantum dynamical study

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mnras.414.3547f&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 414, Issue 4, pp. 3547-3550.

Astronomy and Astrophysics

Astronomy

Astrochemistry, Molecular Data, Molecular Processes, Methods: Numerical, Ism: Molecules, Ism: Supernova Remnants

Scientific paper

Rate coefficients for the formation of carbon monoxide (CO) by radiative association of carbon and oxygen atoms are computed using quantum dynamical simulations. At temperatures above 10 K CO radiative association is dominated by C(3P) and O(3P) approaching on the A1Π potential energy curve. The rate coefficient is estimated as k=A(T/300 K)αexp-β/T with A= 1.39 × 10-18 cm3 s-1, α=-0.016 and β= 92.2 for temperatures between 6 and 127.2 K, and A= 1.36 × 10-17 cm3 s-1, α= 0.41 and β= 340 for temperatures between 127.2 and 15 000 K. Furthermore we computed the rate coefficients for approaching on the X1Σ+ curve. For temperatures below 200 K it is between 0.7 × 10-22 and 4 × 10-22 cm3 s-1.

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