Search

Now showing items 1-1 of 1

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

Bragaglia, A.; Carretta, E.; Gratton, R. G.; Lucatello, Sara; Milone, A.; Piotto, G.; D'Orazi, V.; Cassisi, S.; Sneden, Christopher; Bedin, L. R. (2010-09)

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 ...