Tricarbon monoxide in TMC-1

Details Tricarbon monoxide in TMC-1 Tricarbon monoxide in TMC-1

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...297..302b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 297, Oct. 1, 1985, p. 302-308. Research supported by Monash University and

Astronomy and Astrophysics

Astronomy

32

Abundance, Carbon Compounds, Interstellar Gas, Nebulae, Radiative Transfer, Radio Sources (Astronomy), Least Squares Method, Radio Astronomy

Scientific paper

The measurement of three new lines of C3O in TMC-1 is reported. The observed peak antenna temperatures, appropriately corrected for atmospheric and telescope losses, are found to be consistent with a large velocity gradient radiative transfer model whose parameters span the range of standard values for this cloud. The derived fractional abundance for C3O is 1.4 x 10 to the -10th, comparable with the results predicted from a model calculation based on a gas-phase ion-molecule reaction scheme. The results of negative searches for C3O in six other sources are not inconsistent with expected conditions in these clouds.

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