The Pristine survey is a narrow-band, photometric survey focused around the wavelength region of the Ca II H&K absorption lines, designed to efficiently search for extremely metal-poor stars. In this work, we use the first results of amedium-resolution spectroscopic follow-up to refine the selection criteria for finding extremely metal-poor stars ([Fe/H]
Stephan Morgenthaler, Shuangqing Liao
Nicolas Lawrence Etienne Longeard
Babak Falsafi, Mathias Josef Payer, Yuanlong Li, Florian Hofhammer, Siddharth Gupta, Atri Bhattacharyya, Andrés Sánchez Marín