On the interpretation of the CH cometary spectrum

Details On the interpretation of the CH cometary spectrum On the interpretation of the CH cometary spectrum

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987esasp.278..607a&link_type=abstract

In ESA, Proceedings of the International Symposium on the Diversity and Similarity of Comets p 607-612 (SEE N88-21884 14-91)

Computer Science

3

Comets, Emission Spectra, Hydrocarbons, Radicals, Abundance, Molecular Excitation, Molecular Rotation, Radiation Chemistry

Scientific paper

A procedure to compute cometary spectra taking into account radiative processes and collisional effects is described. The populations of the rotational levels are determined by solving the statistical equilibrium equations at a certain number of locations within the coma (which can be modelled with n(R), T(R), v(R) laws) and the emerging intensity is then evaluated by integrating the emissions along the line of sight. Such a program was applied to the CH radical. The importance of collisions in exciting the lower rotational levels of CH is confirmed.

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