Collisional excitation of interstellar methyl cyanide

Details Collisional excitation of interstellar methyl cyanide Collisional excitation of interstellar methyl cyanide

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...309..331g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 309, Oct. 1, 1986, p. 331-333.

Astronomy and Astrophysics

Astrophysics

29

Cyanides, Interstellar Matter, Methyl Compounds, Molecular Clouds, Molecular Excitation, Molecular Collisions, Rates (Per Time)

Scientific paper

Theoretical calculations are used to determine the collisional excitation rates of methyl cyanide under interstellar molecular cloud conditions. The required Q(L,M) as a function of kinetic temperature were determined by averaging fixed energy IOS (infinite order sudden) results over appropriate Boltzmann distributions of collision energies. At a kinetic temperature of 40 K, rates within a K ladder were found to be accurate to generally better than about 30 percent.

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