We have developed a new procedure to search for carbon-enhanced metal-poor (CEMP) stars from the Hamburg/ESO (HES) prism-survey plates. This method employs an extended line index for the CH G band, which we demonstrate to have superior performance when compared to the narrower G-band index formerly employed to estimate G-band strengths for these spectra.
Cone search capability for table J/AJ/139/1051/CEMPstars (Stellar data, atmospheric parameters and carbon abundance estimates for the observed carbon-enhanced metal-poor (CEMP) candidates)