High-resolution observations of CO in IRC + 10216 and three related objects

Details High-resolution observations of CO in IRC + 10216 and three related objects High-resolution observations of CO in IRC + 10216 and three related objects

May 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...230..149w&link_type=abstract

Astrophysical Journal, Part 1, vol. 230, May 15, 1979, p. 149-155.

Astronomy and Astrophysics

Astronomy

52

Carbon Monoxide, Infrared Astronomy, Infrared Stars, Stellar Envelopes, Stellar Mass Ejection, High Resolution, Infrared Spectroscopy, Line Spectra, Nebulae, Planetary Nebulae, Spectral Resolution, Stellar Spectra

Scientific paper

The 10-m telescope at the Caltech Owens Valley Radio Observatory has been used to make 26-arcsec resolution observations at 230 GHz. The circumstellar cloud in IRC + 10216 was fully resolved and mapped using the J = 2-1 line of CO; the emission is found to be centrally peaked and circularly symmetric. The extended emission may imply that the stellar mass loss was more rapid in the past. Also observed were three other circumstellar sources (CIT 6, CRL 2688, and NGC 7027). In each case the CO(2-1) line intensity is unexpectedly high.

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