Transitions between the fine structure components of C/plus/ in collision with atomic hydrogen

Details Transitions between the fine structure components of C/plus/ in collision with atomic hydrogen Transitions between the fine structure components of C/plus/ in collision with atomic hydrogen

Oct 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975a%26a....43..229b&link_type=abstract

Astronomy and Astrophysics, vol. 43, no. 2, Oct. 1975, p. 229-232.

Astronomy and Astrophysics

Astrophysics

12

Carbon, Electron Transitions, Fine Structure, Hydrogen Atoms, Interstellar Gas, Ionic Collisions, Atomic Collisions, Nebulae, Polarization Characteristics, Potential Energy

Scientific paper

A semi-classical approximation using the potential energy curves of 4 states of the positive ion CH is used to calculate the excitation cross section of the fine structure transition of thermal carbon ion-hydrogen atom collisions in interstellar clouds. The exchange interaction and the trajectory effects induced by the long range polarization potential are taken into account. The cooling function of the collisions is computed as a function of the kinetic temperature of the medium.

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