Evidence for ion-molecular chemistry in the envelope of IRC +10216

Journal Article · Wed Jun 01 04:00:00 EDT 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/185187· OSTI ID:7068139

Bieging, J H; Rieu, N

Results of aperture synthesis mapping of line emission from the molecules HNC, C/sub 2/H, and HC/sub 3/N in the envelope of the carbon star IRC +10216 are presented. The observations of the molecules clearly show the shell-like structure predicted by model calculations. It is argued that the results constitute strong evidence for the importance of ion-molecule reactions and photochemical processes in the circumstellar envelope of IRC +10216. 24 references.

• Research Organization: California Univ., Berkeley (USA); Paris Observatoire, Meudon (France)
• OSTI ID: 7068139
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 329; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBON STARS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHEMISTRY
COSMIC RADIO SOURCES
COSMOCHEMISTRY
ELECTROMAGNETIC RADIATION
MAIN SEQUENCE STARS
MASS TRANSFER
MOLECULES
MORPHOLOGY
PHOTOCHEMICAL REACTIONS
RADIATIONS
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ULTRAVIOLET RADIATION