Observations of the cyclic C3H radical in the interstellar medium

Details Observations of the cyclic C3H radical in the interstellar medium Observations of the cyclic C3H radical in the interstellar medium

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...239..319m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 239, no. 1-2, Nov. 1990, p. 319-325. Research supported by the National Radio

Astronomy and Astrophysics

Astronomy

16

Cyclic Hydrocarbons, Free Radicals, Interstellar Matter, Line Spectra, Molecular Clouds, Radio Astronomy, Star Formation, Vibrational Spectra

Scientific paper

The results of a survey of c-C3H towards several Galactic molecular clouds has detected the molecule in 13 of the 19 sources observed. A comparison between c-C3H and the only other hydrocarbon ring molecules discovered in the ISM, C3H2, reveals that the total number of c-C3H molecules = 0.0904 + or - 0.0287 times the total number of C3H2 molecules. The warmer sources in the survey show no systematic differences in the ratio of the total number of c-C3H molecules to the total number of C3H2 molecules when compared to their cold cloud counterparts. This observed abundance correlation suggests that the two ring molecules have a common precursor in C3H3(+).

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