Showing 2001Show all
2 papers · 1 filter
astro-ph2001
A Survey of M31 Globular Clusters using WFPC2 on board HST
R. M. Rich, C. E. Corsi, M. Bellazzini +3
We report new, as yet unpublished HST/WFPC2 V, I photometry of 9 globular clusters in M31. These are part of a total sample of 19 clusters on M31 with well observed CMDs from HST.…
astro-ph2001
The RR Lyrae variables in M54 and the Sgr dwarf galaxy
Carla Cacciari, Michele Bellazzini, Samantha Colucci
We report on new B, V and I CCD photometry of the globular cluster M54 that was aimed at the study of its variable stars. With respect to the previous most recent work on M54 we ha…