The expected impact of the Gaia mission on our understanding of metal-poor stars and the formation of the Galactic halo is discussed. It is concluded that substantial ground-based efforts will be needed in order to realise the full potential of the Gaia project with its grand volume of high-precision astrometric and photometric stellar data.
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Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R ChinaChinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Tan, K. F.
Shi, J. R.
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Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R ChinaChinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Shi, J. R.
Zhao, G.
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Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R ChinaChinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China