Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...216..158s&link_type=abstract
Astrophysical Journal, Part 1, vol. 216, Aug. 15, 1977, p. 158-164.
Astronomy and Astrophysics
Astrophysics
36
Astronomical Spectroscopy, Carbon, Comets, Fluorescence, Molecular Spectra, Emission Spectra, Franck-Condon Principle, Molecular Energy Levels, Spectral Bands, Tables (Data), Transition Probabilities
Scientific paper
Swan-band emission from the C2 molecule provides important information for a study of the physical processes occurring in comets. It is, therefore, a disturbing factor that many quantitative Swan-band observations are in clear contradiction of predictions of resonance fluorescence excitation of the Swan bands. A description is presented of an investigation involving an application of resonance fluorescence theory to C2. The investigation takes into account all important electronic transitions which determine the population distribution of the lowest energy states. It is found that the previous discrepancy for the brighter band sequences disappears.
Krishna Swamy K. S.
Odell C. R.
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