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1980•The Astrophysical JournalRequires access

Laboratory studies of some ion-atom reactions related to interstellar molecular synthesis

A. A. Viggiano, D. L. Albritton, Fred C. Fehsenfeld, Nigel G. Adams, David Cecil Smith, F. Howorka

Open publisher page 70 citations

Abstract

The rate coefficients and product ions have been determined for reactions involving C(+), CH(+), CH2(+), CH3(+), CH5(+), C2(+), C2H(+), C2H2(+), D(+), OH(+), and H2O(+) ions with N and O atoms and NO molecules at 300 K. The values obtained for the rate coefficients are generally substantial fractions of the collision-limiting values, indicating that ion-atom reactions can be important steps in the synthesis of some of the molecules observed in interstellar clouds, in accordance with previous models.

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What this paper is about

The rate coefficients and product ions have been determined for reactions involving C(+), CH(+), CH2(+), CH3(+), CH5(+), C2(+), C2H(+), C2H2(+), D(+), OH(+), and H2O(+) ions with N and O atoms and NO molecules at 300 K. The values obtained for the rate coefficients are generally substantial fractions of the collision-limiting values, indicating that ion-atom reactions can be important steps in the synthesis of some of the molecules observed in interstellar clouds, in accordance with previous models.

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Available abstract

The rate coefficients and product ions have been determined for reactions involving C(+), CH(+), CH2(+), CH3(+), CH5(+), C2(+), C2H(+), C2H2(+), D(+), OH(+), and H2O(+) ions with N and O atoms and NO molecules at 300 K. The values obtained for the rate coefficients are generally substantial fractions of the collision-limiting values, indicating that ion-atom reactions can be important steps in the synthesis of some of the molecules observed in interstellar clouds, in accordance with previous models.

Key concepts: Physics, Ion, Interstellar cloud, Molecule, Interstellar medium, Astrochemistry, Polyatomic ion, Dissociative recombination

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