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Helium enhanced stars and multiple populations along the horizontal branch of NGC 2808: Direct spectroscopic measurements

Marino, Anna; Milone, Antonino; Przybilla, N; Bergemann, Maria; Lind, K.; Asplund, Martin; Cassisi, S; Catelan, M; Casagrande, Luca; Valcarce, A.A.R; Bedin, L R; Cortes, C; D'Antona, Francesca; Jerjen, Helmut; Piotto, G; Schlesinger, Katharine; Zoccali, M; Angeloni, R


We present an abundance analysis of 96 horizontal branch (HB) stars in NGC 2808, a globularcluster exhibiting a complex multiple stellar population pattern. These stars are distributed indifferent portions of the HB and cover a wide range of temperature.

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stt1993
Access Rights: Open Access


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