Radio detection of interstellar DCO/sup +/

Journal Article · Fri Oct 15 04:00:00 EDT 1976 · Astrophys. J., Lett.; (United States)

DOI:https://doi.org/10.1086/182273· OSTI ID:7139385

Hollis, J M; Snyder, L E; Lovas, F J; Buhl, D

The J=1--0 transition of the deuterated formyl ion, DCO/sup +/, has been detected in emission from NGC 2264 and DR 21(OH) and from the cool dust cloud L134. Estimates for the column density ratios of H/sup 13/CO/sup +/ to DCO/sup +/ are given for NGC 2264 and DR 21(OH); lower limits for the ratios are given for five other clouds. The DCO/sup +/ dectection in L134 provides unique observational evidence in support of chemical fractionation. The L134 results also suggest that the dust clouds may act as repositories for primordial deuterium. (AIP)

• Research Organization: National Radio Astronomy Observatory
• OSTI ID: 7139385
• Journal Information: Astrophys. J., Lett.; (United States), Journal Name: Astrophys. J., Lett.; (United States) Vol. 209:2; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
ACYL RADICALS
CHEMISTRY
COSMOCHEMISTRY
DEUTERIUM COMPOUNDS
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
FORMYL RADICALS
HYDROGEN COMPOUNDS
INTERSTELLAR SPACE
RADIATIONS
RADICALS
RADIOWAVE RADIATION
SPACE
SPECTRA