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arXiv · 1302.4375

Evidence for multiple populations in the massive globular cluster NGC 2419 from deep uVI LBT photometry

G. Beccari·M. Bellazzini·C. Lardo·A. Bragaglia·E. Carretta·E. Dalessandro·A. Mucciarelli·E. Pancino
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Abstract

We present accurate wide-field uVI photometry of the remote and massive Galactic globular cluster NGC 2419, aimed at searching for the u-V color spread along the Red Giant Branch (RGB) that is generally interpreted as the photometric signature of the presence of multiple populations in globular clusters. Focusing on the RGB stars in the magnitude range 19.8 0.0 lie preferentially on the blue side.

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G. Beccari, M. Bellazzini, C. Lardo, A. Bragaglia, E. Carretta, E. Dalessandro, A. Mucciarelli, E. Pancino. 2013-02-18. Evidence for multiple populations in the massive globular cluster NGC 2419 from deep uVI LBT photometry. https://doi.org/10.1093/mnras%2Fstt316

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