Example of spectra in the H band (upper panel) and K band (lower panel) of red giants candidates taken with EMIR in MOS mode. The slit width is set as 0.8″ for all objects. The red lines above the spectra are the atmospheric models fitted with Ferre (Allende Prieto et al. 2006). The spectra, normalised in flux, are shifted in vertical to fit within the figure. Units on the X-axis are the wavelengths in angstroms.