Detections of C-13-substituted C/sub 3/H/sub 2/ in astronomical sources

Journal Article · Mon Dec 01 00:00:00 EST 1986 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/184792· OSTI ID:6512669

Madden, S C; Irvine, W M; Matthews, H E

The more abundant C-13-substituted variant of the new interstellar ring molecule, C/sub 3/H/sub 2/, has been detected in TMC-1 and Sgr B2, and a tentative detection has been made in IRC + 10216. The fractional abundance relative to H2 is 1-2 x 10 to the -8th in TMC-1, a value similar to that of HCN. In Sgr B2, the C-12 species shows a self-absorbed profile and the relative abundance of C/sub 3/H/sub 2/ is about an order of magnitude less than in TMC-1. In IRC + 10216, the fractional abundance of C/sub 3/H/sub 2/ is an order of magnitude greater than that in TMC-1. 23 references.

• Research Organization: Five College Radio Astronomy Observatory, Amherst, MA; National Research Council of Canada, Herzberg Institute of Astrophysics, Ottawa
• OSTI ID: 6512669
• Journal Information: Astrophys. J.; (United States), Vol. 311
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
INTERSTELLAR SPACE
CHEMICAL COMPOSITION
ABUNDANCE
CARBON 13
COSMIC GASES
COSMOCHEMISTRY
HYDROCARBONS
MOLECULES
CARBON ISOTOPES
CHEMISTRY
EVEN-ODD NUCLEI
FLUIDS
GASES
ISOTOPES
LIGHT NUCLEI
NUCLEI
ORGANIC COMPOUNDS
SPACE
STABLE ISOTOPES
640105* - Astrophysics & Cosmology- Galaxies