Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...133..347h&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 133, no. 2, April 1984, p. 347-356. Research supported by the Research Corp.
Astronomy and Astrophysics
Astrophysics
15
Abundance, Hydrocarbons, Interstellar Chemistry, Molecular Clouds, Radicals, Molecular Spectra, Radio Spectra, Stellar Envelopes
Scientific paper
C2H(N = 1-0) emission has been extensively observed in a variety of molecular clouds, including: 12 hot, dense, cloud cores, 3 bright-rimmed clouds (in NGC 1977, IC 1396, and IC 1848), and across the extended OMC - 1 cloud. It has also been observed in the circumstellar envelopes IRC + 10216 and AFGL 2688. Abundance analyses of the molecular clouds yield C2H/(C-13)O abundance ratios of about 0.01, with little variation (less than about a factor of 4) either between clouds or across individual clouds. In the Orion plateau source, the C2H abundance is enhanced by less than a factor of 4, relative to the extended cloud. The generally high levels of C2H found in the molecular clouds are not readily accounted for by simple, steady-state chemical models, and suggest, as do earlier observations of atomic carbon, that the carbon chemistry in dense clouds is more active than is commonly assumed.
Carlson Joseph W.
Huggins Patrick J.
Kinney Anne L.
No associations
LandOfFree
The distribution and abundance of interstellar C2H does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The distribution and abundance of interstellar C2H, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The distribution and abundance of interstellar C2H will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1498162