activity
19992026
most citedNa-O Anticorrelation and HB. VII. The chemical composition of first and second-generation stars in 15 globular clusters from GIRAFFE spectra

791 citations · 4.6k across the 62 of their papers we have counts for

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Showing 2009Show all

6 papers · 1 filter

astro-ph.SR2009★ 72 cited

On a new Near-Infrared method to estimate the absolute ages of star clusters: NGC3201 as a first test case

G. Bono, P. B. Stetson, D. A. VandenBerg +24

We present a new method to estimate the absolute ages of stellar systems. This method is based on the difference in magnitude between the main sequence turn-off (MSTO) and a well d…

astro-ph.GA2009★ 103 cited

Chemical abundances for 11 bulge stars from high-resolution, near-IR spectra

N. Ryde, B. Gustafsson, B. Edvardsson +10

It is debated whether the Milky Way bulge has the characteristics of a classical bulge sooner than those of a pseudobulge. Detailed abundance studies of bulge stars is a key to inv…

astro-ph.GA2009★ 791 cited

Na-O Anticorrelation and HB. VII. The chemical composition of first and second-generation stars in 15 globular clusters from GIRAFFE spectra

E. Carretta, A. Bragaglia, R. G. Gratton +12

We present abundances of Fe, Na, and O for 1409 red giant stars in 15 galactic globular clusters, derived from the homogeneous analysis of high resolution FLAMES/GIRAFFE spectra. C…

astro-ph.GA2009★ 83 cited

VLT-FLAMES Analysis of 8 giants in the Bulge Metal-poor Globular Cluster NGC 6522: Oldest Cluster in the Galaxy?

B. Barbuy, M. Zoccali, S. Ortolani +5

NGC 6522 has been the first metal-poor globular cluster identified in the bulge by W. Baade. Despite its importance, very few high resolution abundance analyses of stars in this cl…

astro-ph.SR2009★ 53 cited

Li-rich RGB stars in the Galactic Bulge

O. A. Gonzalez, M. Zoccali, L. Monaco +7

We present Lithium abundance determination for a sample of K giant stars in the galactic bulge. The stars presented here are the only 13 stars with detectable Lithium line (6767.18…

astro-ph.GA2009★ 14 cited

Pfleiderer2: identification of a new globular cluster in the Galaxy

Sergio Ortolani, Charles Bonatto, Eduardo Bica +1

We provide evidence that indicate the star cluster Pfleiderer 2, which is projected in a rich field, as a newly identified Galactic globular cluster. Since it is located in a crowd…