Astronomy and Astrophysics – Astronomy
Scientific paper
May 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978icar...34..436d&link_type=abstract
Icarus, vol. 34, May 1978, p. 436-440.
Astronomy and Astrophysics
Astronomy
3
Comets, Cyanides, Emission Spectra, Free Radicals, Photodissociation, Astronomical Spectroscopy, Cyano Compounds, Fluorescence, Laser Induced Fluorescence, Molecular Excitation, Photolysis, Vibrational Spectra
Scientific paper
A description is presented of laboratory measurements concerning the amount and the distribution of energy released into newly formed radicals by the photodissociation process. The experimental method used involved flash photolysis of the parent compound followed by laser induced fluorescence detection of the CN fragment. This method allowed the detection of individual rotational lines and, thereby, a monitoring of the relative populations of the vibrational-rotational levels of the CN ground state. The results obtained in the investigation suggest the possibility of observing emission lines in cometary spectra from newly formed CN radicals. Calculations show that it is feasible with present observational techniques to detect photochemically excited lines in the 0-0 band of the violet system.
Cody Regina J.
Donn Bertram
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