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The temperature distribution of horizontal branch stars: methods and first results
E. P. Lagioia, E. Dalessandro, F. R. Ferraro +4
As part of a large project aimed at characterizing the ultraviolet (UV) properties of globular clusters, we present here a theoretical and observational analysis aimed at setting t…
Probing the role of dynamical friction in shaping the BSS radial distribution. I - Semi-analytical models and preliminary N-body simulations
P. Miocchi, M. Pasquato, B. Lanzoni +5
We present semi-analytical models and simplified -body simulations with and particles aimed at probing the role of dynamical friction (DF) in determining the radia…
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…
The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. I. Overview of the Project and Detection of Multiple Stellar Populations
G. Piotto, A. P. Milone, L. R. Bedin +23
In this paper we describe a new UV-initiative HST project (GO-13297) that will complement the existing F606W and F814W database of the ACS Globular Cluster (GC) Treasury by imaging…
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…