The O-Na and Mg-Al anticorrelations in turn-off and early subgiants in globular clusters

G. Gratton, R.; Bonifacio, P.; Bragaglia, A.; Carretta, E.; Castellani, V.; Centurion, M.; Chieffi, A.; Claudi, R.; Clementini, G.; D'Antona, F.; Desidera, S.; François, P.; Grundahl, F.; Lucatello, S.; Molaro, P.; Pasquini, L.; Sneden, C.; Spite, F.; Straniero, O.

doi:10.1051/0004-6361:20010144

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The O-Na and Mg-Al anticorrelations in turn-off and early subgiants in globular clusters

Published in Astronomy and Astrophysics • Apr 1, 2001

Authors:

R. G. Gratton

P. Bonifacio

A. Bragaglia

Abstract

High dispersion spectra () for a quite large number of stars at the main sequence turn-off and at the base of the giant branch in NGC 6397 and NGC 6752 were obtained with the UVES on Kueyen (VLT UT2). The [Fe/H] values we found are and for NGC 6397 and NGC 6752 respectively, where the first error ba...

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Open Access

Subject

Globular cluster

Physics

Astrophysics

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