Proc. IAU volume 13, issue S334, P327-328 2017 DOI: 10.1017/s1743921317007529 View full text
Young Sun Lee, Timothy C. Beers, Jinmi Yoon, Young Kwang Kim, Jaehun Jeong

Abstract: AbstractThere is growing evidence that, among the various subclasses of carbon-enhanced metal-poor (CEMP) stars, the outer halo of the Milky Way exhibits a higher frequency of CEMP-no stars (those having no over-abundances of heavy neutron-capture elements) compared with the CEMP-s stars (those with over-enhancements of the s-process elements), while the inner halo shows a higher frequency of CEMP-s stars. We map out fractions of CEMP-no and CEMP-s stars in the inner- and outer-halo populations, separated by t…

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