791 citations · 1k across the 5 of their papers we have counts for
4 papers
The extreme chemistry of multiple stellar populations in the metal-poor globular cluster NGC 4833
E. Carretta, A. Bragaglia, R. G. Gratton +7
Our FLAMES survey of Na-O anticorrelation in globular clusters (GCs) is extended to NGC 4833, a metal-poor GC with a long blue tail on the horizontal branch (HB). We present the ab…
GIANO-TNG spectroscopy of red supergiants in the young star cluster RSGC2
L. Origlia, E. Oliva, R. Maiolino +19
The inner disk of the Galaxy has a number of young star clusters dominated by red supergiants that are heavily obscured by dust extinction and observable only at infrared wavelengt…
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…
Na-O Anticorrelation and HB. IV. Detection of He-rich and He-poor stellar populations in the globular cluster NGC 6218
E. Carretta, A. Bragaglia, R. G. Gratton +9
We used the multifiber spectrograph FLAMES on the ESO Very Large Telescope UT2 to derive atmospheric parameters, metallicities and abundances of O and Na for 79 red giant stars in…