Detection of deuteriocyanobutadiyne (DC/sub 5/) in the interstellar cloud TMC-1

Journal Article · Tue Dec 01 04:00:00 EST 1981 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/183688· OSTI ID:5655386

Schloerb, F P; Snell, R L; Langer, W D; Young, J S

We report the first detection of DC/sub 5/N in interstellar space via its J = 9..-->..8 rotational transition at 22.878955 GHz. The observations were made on the NRAO 140 foot (43 m) antenna with the 1.3 cm maser. The ratio of the abundances of DC/sub 5/N to HC/sub 5/N, R(DC/sub 5/N), is 0.016 +- 0.003, assuming that the lines are optically thin. This large fractionation shows that ion-molecule reactions are active in the Taurus clouds, but it is not sufficient to prove that HC/sub 5/N is formed by ion-molecule chemistry. Comparison of R(DC/sub 5/N) with R(DC/sub 3/N) shows that R(DC/sub 5/N)

• Research Organization: Five College Radio Astronomy Observatory, Department of Physics and Astronomy, University of Massachusetts
• OSTI ID: 5655386
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 251:1; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COSMIC DUST
COSMIC GASES
DEUTERIUM COMPOUNDS
DUSTS
ENERGY SPECTRA
ENERGY-LEVEL TRANSITIONS
FLUIDS
GASES
HYDROGEN COMPOUNDS
INTERSTELLAR SPACE
MOLECULES
SPACE
SPECTRA