58 citations · 313 across the 19 of their papers we have counts for
6 papers · 1 filter
Stellar Variability in the VVV survey
M. Catelan, D. Minniti, P. W. Lucas +34
The Vista Variables in the Vía Láctea (VVV) ESO Public Survey is an ongoing time-series, near-infrared (IR) survey of the Galactic bulge and an adjacent portion of the inner disk,…
NGC 5694: another foster son of the Galactic Halo
A. Mucciarelli, M. Bellazzini, M. Catelan +5
We present the results of the analysis of high-resolution spectra obtained with UVES-FLAMES@VLT for six red giant branch stars in the outer-halo metal-poor ([Fe/H]I=-1.98 and [Fe/H…
Time-Series BVI Photometry for the Globular Cluster NGC 6981 (M72)
P. Amigo, P. B. Stetson, M. Catelan +2
We present new BVI photometry of the globular cluster NGC 6981 (M72), based mostly on ground-based CCD archive images. We present a new color-magnitude diagram (CMD) that reaches a…
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…