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Na-O anticorrelation and horizontal branches
2007
Astronomy and Astrophysics
We are studying the Na-O anticorrelation in several globular clusters of different Horizontal Branch (HB) morphology in order to derive a possible relation between (primordial) chemical inhomogeneities and morphological parameters of the cluster population. We used the multifiber spectrograph FLAMES on the ESO Very Large Telescope UT2 and derived atmospheric parameters and elemental abundances of Fe, O and Na for about 150 red giant stars in the Galactic globular cluster NGC 6752. The average
doi:10.1051/0004-6361:20065208
fatcat:exmv6bg5dvhvrbzxxl3gwaoyoi