Detections of C-13-substituted C3H2 in astronomical sources

Details Detections of C-13-substituted C3H2 in astronomical sources Detections of C-13-substituted C3H2 in astronomical sources

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...311l..27m&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 311, Dec. 1, 1986, p. L27-L31.

Astronomy and Astrophysics

Astronomy

14

Abundance, Carbon 13, Cyclic Compounds, Hydrocarbons, Infrared Sources (Astronomy), Interstellar Matter, Molecular Clouds, Interstellar Chemistry, Molecular Spectra

Scientific paper

The authors report observations of the 212-101 rotational transition of the 13C isotopic species of cyclopropenylidene (C3H2) toward TMC-1, Sgr B2, and IRC +10216 using the laboratory rest frequencies which have recently become available. These detections allow estimates to be made of the fractional abundance of the unsubstituted species in these sources. The fractional abundance relative to H2, f(C3H2), is 1 - 2×10-8 in TMC-1. In IRC +10216 f(C3H2) is one order of magnitude greater than in TMC-1.

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