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Structural parameters and blue stragglers in Sagittarius dwarf spheroidal galaxy globular clusters
R. Salinas, L. Jílková, G. Carraro +2
We present BV photometry of four Sagittarius dwarf spheroidal galaxy globular clusters: Arp 2, NGC 5634, Palomar 12, and Terzan 8, obtained with the Danish telescope at ESO-La Sill…
Uncloaking globular clusters in the inner Galaxy
Javier Alonso-García, Mario Mateo, Bodhisattva Sen +4
Extensive photometric studies of the globular clusters located towards the center of the Milky Way have been historically neglected. The presence of patchy differential reddening i…
VVV DR1: The First Data Release of the Milky Way Bulge and Southern Plane from the Near-Infrared ESO Public Survey VISTA Variables in the Via Lactea
R. K. Saito, M. Hempel, D. Minniti +107
The ESO Public Survey VISTA Variables in the Via Lactea (VVV) started in 2010. VVV targets 562 sq. deg in the Galactic bulge and an adjacent plane region and is expected to run for…
Mergers of multi-metallic globular clusters: The role of dynamics
Pau Amaro-Seoane, Symeon Konstantinidis, Patrick Brem +1
Hubble Space Telescope observations of globular clusters (GCs) in the Antennae galaxy show clusters of clusters, or regions in the galaxy that span hundreds of parsecs, where many…
Variable Stars in Large Magellanic Cloud Globular Clusters I: NGC 1466
Charles A. Kuehn, Horace A. Smith, Márcio Catelan +3
This is the first in a series of papers studying the variable stars in Large Magellanic Cloud globular clusters. The primary goal of this series is to better understand how the RR…
Formation of Multiple Populations in Globular Clusters: Another Possible Scenario
A. A. R. Valcarce, M. Catelan
While chemical composition spreads are now believed to be a universal characteristic of globular clusters (GCs), not all of them present multiple populations in their color-magnitu…
RR Lyrae Period-Amplitude Diagrams: From Bailey to Today
Horace A. Smith, Marcio Catelan, Charles Kuehn
More than a century ago, Solon Bailey's pioneering investigations of the variable stars in globular clusters allowed the first period-amplitude diagrams to be constructed for their…
New Galactic Star Clusters Discovered in the VVV Survey
Jura Borissova, Charles Bonatto, Radostin Kurtev +27
VISTA Variables in the V\'ıa Láctea (VVV) is one of the six ESO Public Surveys operating on the new 4-meter Visible and Infrared Survey Telescope for Astronomy (VISTA). VVV is scan…
The Vista Variables in the Via Lactea (VVV) ESO Public Survey: Current Status and First Results
M. Catelan, D. Minniti, P. W. Lucas +29
Vista Variables in the Via Lactea (VVV) is an ESO Public Survey that is performing a variability survey of the Galactic bulge and part of the inner disk using ESO's Visible and Inf…
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…
The Catalina Real-Time Transient Survey (CRTS)
S. G. Djorgovski, A. J. Drake, A. A. Mahabal +9
Catalina Real-Time Transient Survey (CRTS) is a synoptic sky survey uses data streams from 3 wide-field telescopes in Arizona and Australia, covering the total area of ~30,000 deg2…