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

Journal Article · Mon Dec 01 04:00:00 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), Journal Name: Astrophys. J.; (United States) Vol. 311; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
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COSMIC GASES
COSMOCHEMISTRY
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