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

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

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...329l.107b&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 329, June 15, 1988, p. L107-L111.

Astronomy and Astrophysics

Astronomy

56

Carbon Stars, Interstellar Chemistry, Molecular Spectra, Photochemical Reactions, Radio Sources (Astronomy), Stellar Envelopes, Chemical Equilibrium, Late Stars, Stellar Mass Ejection, Synthetic Apertures, Ultraviolet Radiation

Scientific paper

The authors present results of aperture synthesis mapping of line emission from the molecules HNC, C2H, and HC3N in the envelope of the carbon star IRC +10216. The data were obtained with the U.C. Berkeley millimeter interferometer and achieved angular and velocity resolutions of 8arcsec and 2 km s-1. These observations clearly show the shell-like structure predicted by the model calculations and constitute strong evidence for the importance of ion-molecule reactions and photochemical processes in the circumstellar envelope of IRC +10216.

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