Bibcode
Youakim, Kris; Starkenburg, Else; Aguado, D.; Martin, Nicolas; Pristine Collaboration
Referencia bibliográfica
Rediscovering our Galaxy, Proceedings of the International Astronomical Union, IAU Symposium, Volume 334, pp. 51-54
Fecha de publicación:
8
2018
Número de citas
0
Número de citas referidas
0
Descripción
The Pristine survey uses narrow-band photometry on the region of the Ca
II H & K absorption lines to find extremely metal-poor stars. With a
spectroscopic follow-up sample of 205 stars in the magnitude range 14
< V < 18, we compute the success rates for finding extremely
metal-poor stars and modify the selection criteria used to select stars
for follow-up. This reduces the sample to 149 stars, and from these we
report success rates of 22% for recovering stars with [Fe/H] < -3.0
and 70% for [Fe/H] < -2.5. When compared to previous works that
search for extremely metal-poor stars, the success rates of Pristineshow
an improvement in efficiency by a factor of ~4 - 5.