Collisional excitation of interstellar molecules due to H2 - Linear molecules CO, OCS, SiO, HCN and HC3N in 1 Sigma state

Details Collisional excitation of interstellar molecules due to H2 - Linear molecules CO, OCS, SiO, HCN and HC3N in 1 Sigma state Collisional excitation of interstellar molecules due to H2 - Linear molecules CO, OCS, SiO, HCN and HC3N in 1 Sigma state

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ap%26ss..71..507m&link_type=abstract

Astrophysics and Space Science, vol. 71, no. 2, Aug. 1980, p. 507-514.

Astronomy and Astrophysics

Astrophysics

6

Cyanoacetylene, Hydrogen, Interstellar Gas, Molecular Collisions, Molecular Excitation, Carbon Monoxide, Carbonyl Compounds, Gas Temperature, Hydrocyanic Acid, Reaction Kinetics, Silicon Oxides, Sulfides

Scientific paper

Using a normalized perturbative, semi-classical approach, collision-induced rotational excitation rates of CO, OCS, SiO, HCN, HC3N due to H2 are computed. The calculated excitation rates for CO-H2 and OCS-H2 systems at 100 K are in good agreement with the results of close coupling approximation at low values of J, where J is the rotational quantum number. The rates are found to be very sensitive with respect to ortho and para states of H2

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