The Pristine survey - I. Mining the Galaxy for the most metal-poor stars

  title={The Pristine survey - I. Mining the Galaxy for the most metal-poor stars},
  author={Else Starkenburg and Nicolas F. Martin and Kris Youakim and David S. Aguado and Carlos Allende Prieto and Anke Arentsen and Edouard J. Bernard and Piercarlo Bonifacio and Elisabetta Caffau and Raymond G. Carlberg and Patrick C{\^o}t{\'e} and Morgan Fouesneau and P. François and Oliver Franke and Jonay I. Gonz{\'a}lez Hern{\'a}ndez and Stephen D. J. Gwyn and Vanessa Hill and Rodrigo A. Ibata and Pascale Jablonka and Nicolas Longeard and Alan W. McConnachie and Julio F. Navarro and R{\'u}ben S{\'a}nchez-Janssen and Eline Tolstoy and Kim A. Venn},
  journal={Monthly Notices of the Royal Astronomical Society},
We present the Pristine survey, a new narrow-band photometric survey focused on the metallicity-sensitive Ca HK lines and conducted in the Northern hemisphere with the wide-field imager MegaCam on the Canada-France-Hawaii Telescope. This paper reviews our overall survey strategy and discusses the data processing and metallicity calibration. Additionally we review the application of these data to the main aims of the survey, which are to gather a large sample of the most metal-poor stars in the… 
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