Computer Science
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982esasp.192...37b&link_type=abstract
In ESA Galactic and Extragalactic Infrared Spectroscopy p 37-40 (SEE N83-18593 08-88)
Computer Science
Collision Parameters, Interstellar Gas, Line Spectra, Millimeter Waves, Molecular Clouds, Molecules, Rotation, Rotational Spectra, Accuracy, Coefficients, Electric Potential, Molecular Excitation, Scattering Cross Sections, Wave Functions
Scientific paper
It is shown how present uncertainties in the ability to compute collisional cross sections for rotational transitions can lead to order of magnitude errors in the interpretation of the observed antenna temperatures for rotational emission lines from interstellar clouds. The framework within which improved cross sections can be derived is described, and progress is reported in the aim of reducing the theoretical uncertainty by a factor of five.
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