On the evidence for a cyanogen gradient in 47 Tucanae
Journal Article
·
· Publications of the Astronomical Society of the Pacific; (USA)
- Colorado College, Colorado Springs (USA)
The evidence for a radial gradient in the distribution of CN strengths among 47 Tuc giants (Norris and Freeman, 1979) is examined. Apparent differences are found between the distribution of cyanogen strengths determined from stellar spectra and the distribution determined from photoelectric photometry for stars in the same (outer) region of the cluster. This, together with the expected random variations in the observed distributions for a small number of stars, suggests that the available evidence for a CN gradient in 47 Tuc is suggestive but not compelling. 10 refs.
- OSTI ID:
- 5151538
- Journal Information:
- Publications of the Astronomical Society of the Pacific; (USA), Journal Name: Publications of the Astronomical Society of the Pacific; (USA) Vol. 101; ISSN PASPA; ISSN 0004-6280
- Country of Publication:
- United States
- Language:
- English
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