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

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Authors

Marino, Anna
Milone, Antonino
Przybilla, N
Bergemann, Maria
Lind, K.
Asplund, Martin
Cassisi, S
Catelan, M
Casagrande, Luca
Valcarce, A.A.R

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Blackwell Publishing Ltd

Abstract

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.

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Source

Monthly Notices of the Royal Astronomical Society

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Open Access

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