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| Paper: |
Low-Metallicity and Horizontal-Branch Stars in the Halo of the Galaxy |
| Volume: |
165, The Third Stromlo Symposium: The Galactic Halo |
| Page: |
202 |
| Authors: |
Beers, Timothy C. |
| Abstract: |
We discuss new results based on the many thousands of metal-poor and field horizontal-branch stars discovered in the ongoing HK survey of Beers and collaborators. The present status of the photometric and spectroscopy follow-up efforts are summarized, and the nature of the halo metallicity distribution function is considered. We point out the existence of apparent complexities in the kinematics of the lowest abundance stars in the Galaxy, and discuss the presence of a large fraction of carbon-enhanced stars among the HK survey stars with feh <= -2.0. We conclude with a summary of work which remains to be carried out in order to obtain a better understanding of the formation and evolution of the Galaxy. |
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