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X-shooter observations of main-sequence stars in the globular cluster NGC 2808: First chemical tagging of a He-normal and a He-rich dwarf

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Date

2010

Authors

Bragaglia, Angela
Carretta, Eugenio
Gratton, Raffaele G.
Lucatello, Sara
Milone, Antonino
Piotto, G
D'Orazi, Valentina
Cassisi, S
Sneden, Chris
Bedin, L R

Journal Title

Journal ISSN

Volume Title

Publisher

Institute of Physics Publishing Ltd.

Abstract

We present the first chemical composition study of two unevolved stars in the globular cluster NGC 2808, obtained with the X-shooter spectrograph at VLT. NGC 2808 shows three discrete, well-separated main sequences. The most accepted explanation for this

Description

Keywords

Keywords: Globular clusters: general; Globular clusters: individual (NGC 2808); Stars: abundances; Stars: evolution; Stars: Population II

Citation

URI

http://hdl.handle.net/1885/79582

Collections

ANU Research Publications

Source

Astrophysical Journal Letters

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1088/2041-8205/720/1/L41

Restricted until

2037-12-31

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01_Bragaglia_X-shooter_observations_of_2010.pdf (704.41 KB)

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