2 citations · 3 across the 6 of their papers we have counts for
6 papers
NGC5694: another extra-galactic globular cluster
A. Mucciarelli, M. Bellazzini, M. Catelan +5
We discuss the chemical composition of six giant stars of the outer Halo globular cluster NGC5694, through the analysis of UVES@FLAMES high-resolution spectra. The cluster has an a…
Multiple populations in Galactic globular clusters: a survey in the Strömgren system
J. Alonso-García, M. Catelan, P. Amigo +10
We are coming to believe that stellar populations in globular clusters are not as simple as they were once thought to be. A growing amount of photometric and spectroscopic evidence…
Theoretical Modeling of the RR Lyrae Variables in NGC 1851
Andrea Kunder, Maurizio Salaris, Santi Cassisi +5
The RR Lyrae instability strip (IS) in NGC 1851 is investigated, and a model is presented which reproduces the pulsational properties of the RR Lyrae population. In our model, a st…
Disentangling multiple stellar populations in globular clusters using the Strömgren system
J. Alonso-García, M. Catelan, P. Amigo +10
An increasing amount of spectroscopic and photometric evidence is showing that the stellar populations of globular clusters are not as simple as they have been considered for many…
New Variable Stars in CMa Globular Cluster Candidates
P. Amigo, M. Catelan, P. B. Stetson +3
We present the preliminary results of an image-subtraction analysis of the Galactic globular cluster M79 (NGC 1904), as well as a new investigation of the variable star population…
RR Lyrae Variables in NGC 2808
Andrea Kunder, Peter B. Stetson, Márcio Catelan +2
NGC 2808 is a unique globular cluster with not only a bimodal-horizontal branch (HB) but also with gaps on the blue horizontal branch. Adequate interpretation of the nature of the…