The globular cluster NGC6528 the ferrous side of the Galactic Bulge.
We present new and accurate optical photometry of the Bulge globular cluster NGC6528. The images were collected with ACS at HST and together with WFC3 (UVIS, IR) allowed us to measure the proper motion to separate cluster and field stars. We adopted two empirical calibrators and we found that NGC6528 is coeval with and more metal-rich than 47 Tuc
Lagioia, E. P. et al.
Fecha de publicación:
2015