Comparing the Chemistry of Oxygen-Rich and Carbon-Rich Circumstellar Envelopes Using the ARO Submillimeter Telescope

Details Comparing the Chemistry of Oxygen-Rich and Carbon-Rich Circumstellar Envelopes Using the ARO Submillimeter Telescope Comparing the Chemistry of Oxygen-Rich and Carbon-Rich Circumstellar Envelopes Using the ARO Submillimeter Telescope

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..417..225t&link_type=abstract

Submillimeter Astrophysics and Technology: a Symposium Honoring Thomas G. Phillips ASP Conference Series, Vol. 417, proceedings

Astronomy and Astrophysics

Astrophysics

Scientific paper

We are conducting a continuous spectral survey from 215 to 285 GHz toward the circumstellar envelopes of VY CMa and IRC +10216 using the Submillimeter Telescope of the Arizona Radio Observatory. The survey gives a comparative picture of chemistry in a carbon-rich and an oxygen-rich circumstellar envelope, and it also provides the first unbiased line scan of an oxygen-rich shell. In VY CMa, 19 molecules have been observed thus far, including exotic species such as NaCl, PO, and AlO.

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