The Hubble Space Telescope UV legacy survey of galactic globular clusters. - I. overview of the project and detection of multiple stellar populations
Piotto, G; Milone, Antonino; Bedin, L R; Anderson, Jay; King, I R; Marino, Anna; Nardiello, D; Aparicio, A; Barbuy, Beatriz; Bellini, A; Cassisi, S; D'Antona, Francesca; Renzini, Alvio; Hidalgo, Sebastian L; van der Marel, R P
In this paper we describe a new UV-initiative Hubble Space Telescope project (GO-13297) that will complement the existing F606W and F814W database of the Advanced Camera for Surveys Globular Cluster (GC) Treasury by imaging most of its clusters through UV/blue WFC3/UVIS filters F275W, F336W, and F438W. This "magic trio" of filters has shown an uncanny ability to disentangle and characterize multiple population (MP) patterns in GCs in a way that is exquisitely sensitive to C, N, and O abundance...[Show more]
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