352 citations · 6.6k across the 189 of their papers we have counts for
11 papers · 1 filter
High-resolution CRIRES spectra of Terzan1: a metal-poor globular cluster toward the inner bulge
E. Valenti, L. Origlia, A. Mucciarelli +1
Containing the oldest stars in the Galaxy, globular clusters toward the bulge can be used to trace its dynamical and chemical evolution. In the bulge direction, there are ~50 clust…
Kinematics of a globular cluster with an extended profile: NGC5694
M. Bellazzini, A. Mucciarelli, A. Sollima +6
We present a study of the kinematics of the remote globular cluster NGC5694 based on GIRAFFE@VLT medium resolution spectra. A sample of 165 individual stars selected to lie on the…
Radial velocities from VLT-KMOS spectra of giant stars in the globular cluster NGC 6388
Emilio Lapenna, Livia Origlia, Alessio Mucciarelli +5
We present new radial velocity measurements for 82 stars, members of the Galactic globular cluster NGC 6388, obtained from ESO-VLT KMOS spectra acquired during the instrument Scien…
NLTE effects on AGB stars in 47 Tucanae
Emilio Lapenna, Alessio Mucciarelli, Barbara Lanzoni +4
We present the iron abundance of 24 asymptotic giant branch (AGB) stars members of the globular cluster 47 Tucanae, obtained with high-resolution spectra collected with the FEROS s…
Spinning like a Blue Straggler: the population of fast rotating Blue Straggler stars in Omega Centauri
A. Mucciarelli, L. Lovisi, F. R. Ferraro +3
By using high-resolution spectra acquired with FLAMES-GIRAFFE at the ESO/VLT, we measured radial and rotational velocities for 110 Blue Straggler stars (BSSs) in Omega Centauri, th…
Gaia-ESO Survey: The analysis of high-resolution UVES spectra of FGK-type stars
R. Smiljanic, A. J. Korn, M. Bergemann +99
The Gaia-ESO Survey is obtaining high-quality spectroscopic data for about 10^5 stars using FLAMES at the VLT. UVES high-resolution spectra are being collected for about 5000 FGK-t…
The cosmological Lithium problem outside the Galaxy: the Sagittarius globular cluster M54
A. Mucciarelli, M. Salaris, P. Bonifacio +2
The cosmological Li problem is the observed discrepancy between Li abundance, A(Li), measured in Galactic dwarf, old and metal-poor stars (traditionally assumed to be equal to the…
First evidence of fully spatially mixed first and second generations in globular clusters: the case of NGC 6362
E. Dalessandro, D. Massari, M. Bellazzini +6
We present the first evidence of multiple populations in the Galactic globular cluster NGC 6362. We used optical and near-UV Hubble Space Telescope and ground based photometry, fin…
Chemical and kinematical properties of Galactic bulge stars surrounding the stellar system Terzan 5
Davide Massari, A. Mucciarelli, F. R. Ferraro +8
As part of a study aimed at determining the kinematical and chemical properties of Terzan 5, we present the first characterization of the bulge stars surrounding this puzzling stel…
Blue Straggler Stars in Globular Clusters: a powerful tool to probe the internal dynamical evolution of stellar systems
Francesco R. Ferraro, Barbara Lanzoni, Emanuele Dalessandro +2
This chapter presents an overview of the main observational results obtained to date about Blue Straggler Stars (BSSs) in Galactic Globular Clusters (GCs). The BSS specific frequen…
The helium abundance in the metal-poor globular clusters M30 and NGC6397
A. Mucciarelli, L. Lovisi, B. Lanzoni +1
We present the helium abundance of the two metal-poor clusters M30 and NGC6397. Helium estimates have been obtained by using the high-resolution spectrograph FLAMES at the ESO Very…