Barbuy, B.; Zoccali, M.; Ortolani, S.; Momany, Y.; Minniti, D.; Hill, V.; Renzini, A.; Rich, R. M.; Bica, E.; Pasquini, L.; Yadav, R. K. S.
(2006)
Metal-poor globular clusters in the bulge are important tracers of early chemical evolution. HP-1 is among the six metal-poor clusters within 5º of the Galactic center, and could be the one closest to the center. The main ...