SIMBAD references

An analysis of high-resolution Keck HIRES spectra of four giants in the dwarf spheroidal galaxy Draco is presented. We find an unmistakable difference in [Fe/H] among the four stars analyzed, with the range -3.0 < [Fe/H] < -1.5. The abundance ratios are found to be consistent with a Population II sample, although the [Ca/Fe] ratio may be more nearly solar and the [Ba/Fe] ratio exhibits a steeper slope with [Fe/H] than has been found in the Galactic globular clusters or in the Galactic halo field stars. A hint of a deep-mixing pattern is found in one star (D473), suggesting that Draco giants may be more similar to globular cluster giants than they are to the field Population II giants.