Observations of carbon monoxide at 4.7 microns in IRC + 10216, VY Canis Majoris, and NML Cygni
Journal Article
·
· Astrophys. J., v. 183, no. 2, pp. 499-504
OSTI ID:4344152
Indivdual vibration-rotation lines of /sup 12/C/sup 16/O and /sup 13/C/ sup 16 /O have been observed in IRC+10216, VY CMa, and NML Cyg, near 4.7 mu . The lines of CO seen in IRC+ 10216 are heavily saturated, yet quite narrow. Their widtbs, excitations, aad radial velocity indicate physical association with the 2" diameter component of IRC+ 10216 known from lunar occulation measurements. The CO lines seen in VY CMa and NML Cyg correspond well to the more blueshifted of the emission features seen in OH, and must be associated with expanding circumstellar clouds. (auth)
- Research Organization:
- Department of Physics, University of California, Berkeley
- NSA Number:
- NSA-29-021836
- OSTI ID:
- 4344152
- Journal Information:
- Astrophys. J., v. 183, no. 2, pp. 499-504, Journal Name: Astrophys. J., v. 183, no. 2, pp. 499-504; ISSN ASJOA
- Country of Publication:
- United States
- Language:
- English
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