The study of the chemical abundances of metal-poor stars in dwarf galaxies provides a venue to constrain paradigms of chemical enrichment and galaxy formation .
Here we present metallicity and carbon abundance measurements of 100 stars in Sculptor from medium-resolution ( R \sim 2000 ) spectra taken with the Magellan/Michigan Fiber System mounted on the Magellan-Clay 6.5m telescope at Las Campanas Observatory .
We identify 24 extremely metal-poor star candidates ( [ Fe/H ] < - 3.0 ) and 21 carbon-enhanced metal-poor ( CEMP ) star candidates .
Eight carbon-enhanced stars are classified with at least 2 \sigma confidence and five are confirmed as such with follow-up R \sim 6000 observations using the Magellan Echellette Spectrograph on the Magellan-Baade 6.5m telescope .
We measure a CEMP fraction of 36 % for stars below [ Fe/H ] = - 3.0 , indicating that the prevalence of carbon-enhanced stars in Sculptor is similar to that of the halo ( \sim 43 \% ) after excluding likely CEMP-s and CEMP-r/s stars from our sample .
However , we do not detect that any CEMP stars are strongly enhanced in carbon ( [ C/Fe ] > 1.0 ) .
The existence of a large number of CEMP stars both in the halo and in Sculptor suggests that some halo CEMP stars may have originated from accreted early analogs of dwarf galaxies .