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Oxygen Abundances in Bulge-like Dwarf Stars
Published online by Cambridge University Press: 03 August 2017
Abstract
High resolution échelle spectra were obtained with the FEROS spectrograph at the 1.5m ESO telescope for 35 nearby bulge-like stars. From Hipparcos data it appears that the turn-off of this population indicates an age of 10–11 Gyr (Grenon 2000).
Oxygen abundances are calculated using the [O I] line at 6300.3 Å. The derived results show an oxygen overabundance for most of our sample stars when compared to their disk counterparts.
- Type
- Part 1. The Star Clusters of Local Group Galaxies
- Information
- Symposium - International Astronomical Union , Volume 207: Extragalactic Star Clusters , 2002 , pp. 122 - 125
- Copyright
- Copyright © Astronomical Society of the Pacific 2002