NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Deuterated C3H2 as a clue to deuterium chemistryThe deuterated cyclopropenylidene ring molecule, C3HD, has been detected toward several sources in four rotational lines, at 19, 79, 104, and 107 GHz. The relative integrated intensities of the 2-sub-12 - 1-sub-01 lines of C3HD and C3H2 are found in the ratio 1:5, indicating a high deuterium fractionation ratio for cyclopropenylidene. The detection of the C-13 isotope of C3H2 at the same position allows a determination of the optical thickness (about 3) of the line. The detection of such a large enhancement in the deuterated form of C3H2 very strongly suggests that a molecular ion is the chemical precursor of the molecules. Consideration of the amount of the enhancement relative to that in other molecules suggests that the precursor ion is C3H3+.
Document ID
19870047756
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gerin, M.
(Ecole Normale Superieure Paris, France)
Combes, F.
(Ecole Normale Superieure Paris; Meudon, Observatoire, France)
Wootten, H. A.
(National Radio Astronomy Observatory Charlottesville, VA, United States)
Boulanger, F.
(Ecole Normale Superieure, Paris, France; California Institute of Technology Pasadena, United States)
Peters, W. L., III
(Mount Stromlo and Siding Spring Observatories Canberra, Australia)
Kuiper, T. B. H.
(California Institute of Technology Jet Propulsion Laboratory Pasadena, United States)
Date Acquired
August 13, 2013
Publication Date
February 1, 1987
Publication Information
Publication: Astronomy and Astrophysics
Volume: 173
Issue: 1, Fe
ISSN: 0004-6361
Subject Category
Astrophysics
Accession Number
87A35030
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available