The Pristine Inner Galaxy Survey (PIGS) III: carbon-enhanced metal-poor stars in the bulge

  title={The Pristine Inner Galaxy Survey (PIGS) III: carbon-enhanced metal-poor stars in the bulge},
  author={Anke Arentsen and Else Starkenburg and David S. Aguado and Nicolas F. Martin and Vinicius M. Placco and Raymond G. Carlberg and Jonay I Gonz{\'a}lez Hern{\'a}ndez and Vanessa Hill and Pascale Jablonka and Georges Kordopatis and Carmela Lardo and Lyudmila I Mashonkina and Julio F. Navarro and Kim A Venn and Sven Buder and Geraint F. Lewis and Zhen Wan and Daniel B. Zucker},
The most metal-deficient stars hold important clues about the early build-up and chemical evolution of the Milky Way, and carbon-enhanced metal-poor (CEMP) stars are of special interest. However, little is known about CEMP stars in the Galactic bulge. In this paper, we use the large spectroscopic sample of metal-poor stars from the Pristine Inner Galaxy Survey (PIGS) to identify CEMP stars ([C/Fe] > +0.7) in the bulge region and to derive a CEMP fraction. We identify 96 new CEMP stars in the… Expand

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