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Multiple stellar populations in Magellanic Cloud clusters - V. The split main sequence of the young cluster NGC 1866

Milone, Antonino P.; Marino, Anna Fabiola; D’Antona, F.; Bedin, L. R.; Piotto, Giampaolo P.; Jerjen, Helmut; Anderson, Jay; Dotter, Aaron; Di Criscienzo, M.; Lagioia, E. P.

Description

One of the most unexpected results in the field of stellar populations of the last few years is the discovery that some Magellanic Cloud globular clusters younger than ~400 Myr exhibit bimodal main sequences (MSs) in their colour-magnitude diagrams (CMDs). Moreover, these young clusters host an extended main-sequence turn-off(eMSTO) in close analogy with what is observed in most ~1-2 Gyr old clusters of both Magellanic Clouds. We use high-precision Hubble Space Telescope photometry to study the...[Show more]

CollectionsANU Research Publications
Date published: 2017-03
Type: Journal article
URI: http://hdl.handle.net/1885/231150
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stw2965
Access Rights: Open Access

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