Other
Scientific paper
Sep 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....104.1127b&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 104, no. 3, Sept. 1992, p. 1127-1131. Research supported by McDonald Observatory and
Other
11
Abundance, Carbon, Giant Stars, Globular Clusters, Oxygen Spectra, Stellar Spectra, Spectral Bands, Subdwarf Stars
Scientific paper
The Anglo-Australian Telescope has been used to obtain spectra in the 2-micron region for two giant stars in the very metal-poor globular cluster NGC 6397. The spectra show that the CO bands are very weak. Analysis of these bands indicates that the carbon abundances are very low, e.g. about -0.8, confirming the results from an earlier analysis of the CH bands. In addition, the CO analysis gives oxygen abundances of about -0.4 +/- 0.4, in disagreement with analyses of extreme population II subdwarfs and halo giants, but in better agreement with results from high dispersion spectroscopy of some giants in two other low metallicity globular clusters.
Bell Roger A.
Briley Michael M.
Norris John. E.
No associations
LandOfFree
The determination of carbon and oxygen abundances in very metal-poor globular cluster giant stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The determination of carbon and oxygen abundances in very metal-poor globular cluster giant stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The determination of carbon and oxygen abundances in very metal-poor globular cluster giant stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1765628