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arXiv · astro-ph/9911016

Finding the First Stars: The Hamburg/ESO Objective Prism Survey

N. Christlieb·D. Reimers·L. Wisotzki·J. Reetz·T. Gehren·T. C. Beers
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Abstract

We report on a search for extremely metal-poor ([Fe/H]<-3.0) turnoff stars in the Hamburg/ESO objective prism survey (HES). Metal-poor stars are selected by automatic spectral classification. Extensive simulations show that the selection efficiency for turnoff stars of [Fe/H]<-3.0 is >25% at B<16.5. Since the HES is more than 1 mag deeper than the HK survey of Beers et al. (1992), the HES offers the possibility to efficiently increase the total number of metal-poor stars by at least a factor of 4.

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N. Christlieb, D. Reimers, L. Wisotzki, J. Reetz, T. Gehren, T. C. Beers. 1999-11-02. Finding the First Stars: The Hamburg/ESO Objective Prism Survey. https://doi.org/10.1007/10719504_6

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