| Upper limits for the ethyl-cyanide abundances in TMC-1 and L134N: chemical implications. | |
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MedLine Citation:
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PMID: 11538286 Owner: NASA Status: MEDLINE |
Abstract/OtherAbstract:
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We have sought interstellar ethyl-cyanide via its 2(02)-1(01) transition towards two cold, dark clouds and report upper limits of the total column densities of 3 x 10(12) cm-2 and 2 x 10(12) cm-2 for TMC-1 and L134N, respectively. We also observed the 2(02)-1(01) transition of vinyl cyanide previously identified in TMC-1 by Matthews and Sears (1983b). The detection of vinyl cyanide and the non-detection of ethyl cyanide in TMC-1 are consistent with gas phase ion-molecule chemical models, and there is thus no necessity of invoking grain surface synthesis for vinyl cyanide in cold clouds. |
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Authors:
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Y C Minh; W M Irvine |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Astrophysics and space science Volume: 175 ISSN: 0004-640X ISO Abbreviation: Astrophys Space Sci Publication Date: 1991 |
Date Detail:
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Created Date: 1995-12-11 Completed Date: 1995-12-11 Revised Date: 2009-08-07 |
Medline Journal Info:
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Nlm Unique ID: 100971306 Medline TA: Astrophys Space Sci Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 165-9 Citation Subset: S |
Affiliation:
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Department of Physics and Astronomy, University of Massachusetts, Amherst, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acrylonitrile
/
analysis*,
chemistry Astronomical Phenomena Astronomy Extraterrestrial Environment Models, Chemical Nitriles / analysis*, chemistry Solar System* |
| Chemical | |
Reg. No./Substance:
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0/Nitriles; 107-12-0/propionitrile; 107-13-1/Acrylonitrile |
| Investigator | |
Investigator/Affiliation:
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W M Irvine / U MA, Amherst, Five Coll Radio Astronomy Observatory |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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