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The intriguing stellar populations in the globular clusters NGC 6388 and NGC 6441

Bellini, A; Piotto, G; Milone, Antonino; King, I R; Renzini, Alvio; Cassisi, S; Anderson, J; Bedin, L R; Nardiello, D; Pietrinferni, A; Sarajedini, A

Description

NGC 6388 and NGC 6441 are two massive Galactic bulge globular clusters that share many properties, including the presence of an extended horizontal branch (HB), quite unexpected because of their high metal content. In this paper we use Hubble Space Telescope's WFPC2, ACS, and WFC3 images and present a broad multicolor study of their stellar content, covering all main evolutionary branches. The color-magnitude diagrams (CMDs) give compelling evidence that both clusters host at least two stellar...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
URI: http://hdl.handle.net/1885/77472
Source: Astrophysical Journal, The
DOI: 10.1088/0004-637X/765/1/32

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