The radiative association of C and O and C(+) and O

Details The radiative association of C and O and C(+) and O The radiative association of C and O and C(+) and O

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...349..675d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 349, Feb. 1, 1990, p. 675-677.

Astronomy and Astrophysics

Astrophysics

41

Association Reactions, Carbon, Carbon Monoxide, Cosmochemistry, Oxygen, Supernova 1987A, Positive Ions, Radiative Transfer, Reaction Kinetics, Transition Probabilities

Scientific paper

The formation of CO(+) and CO in the expanding metal-rich ejecta of SN 1987A has been discussed by Lepp et al. (1988) and by Petuchowski et al. (1989), who concluded that it probably proceeded through the radiative association of C(+) and O to form CO(+) by the reactions (1) C(+) + O - CO(+) + hnu, followed by charge transfer of CO(+) with O, (2) CO(+) + O - CO + O(+), and by the radiative association of C and O to form CO, (3) C + O - CO + hnu. Petuchowski et al. estimated the rate coefficients of reactions (1) and (3) and concluded that the sequence of (1) and (2) constitutes the major source of CO. An alternative calculation of the rate coefficients is made here that indicates that reaction (3) is probably more important.

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