Search for the interstellar HCN dimer

Journal Article · Sun Sep 01 04:00:00 EDT 1985 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/163439· OSTI ID:5612480

Schenewerk, M S; Snyder, L E; Jewell, P R; Buxton, L W; Campbell, E J

An unsuccessful search was made for emission from the vibrational ground state of the interstellar HC-12N-14 dimer in nine sources. The (HCN)2 search results reported earlier by other groups were for a vibrationally excited state; hence, this is the first reported attempt to detect the vibrational ground state. Upper limits to the (HCN)2 column density per unit velocity were calculated for each source, and a comparison to HCN data for Orion A was made which suggests that the abundance of the HCN dimer is significantly less than that of the monomer. One unidentified line was detected and is reported here with a tentative identification. 18 references.

• Research Organization: Illinois Univ., Urbana; National Radio Astronomy Observatory, Tucson, AZ; G. B. Du Pont Co., Inc., Parkersburg, WV; Los Alamos National Lab., NM
• OSTI ID: 5612480
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 296; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
CHEMICAL COMPOSITION
COSMIC GASES
COSMIC RADIO SOURCES
CYANIDES
DIPOLE MOMENTS
FLUIDS
GASES
HYDROCYANIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INTERSTELLAR SPACE
MOLECULES
MONOMERS
SPACE