122 citations · 1.4k across the 45 of their papers we have counts for
10 papers · 1 filter
Chemical abundances in the metal-intermediate GC NGC 6723
Juliana Crestani, Alan Alves-Brito, Giuseppe Bono +2
We have performed a detailed spectral analysis of the inner halo Galactic globular cluster (GC) NGC 6723 using high resolution (R 22000-48000) spectra for for eleven red g…
The Population of Pulsating Variable Stars in the Sextans Dwarf Spheroidal Galaxy
Kathy Vivas, Javier Alonso-García, Mario Mateo +2
A large extension of the Sextans dwarf spheroidal galaxy, 7 sq degrees, has been surveyed for variable stars using the Dark Energy Camera at the Blanco Telescope in Cerro Tololo In…
VVV Survey of Blue Horizontal-Branch Stars in the Bulge-Halo Transition Region of the Milky Way
Katherine Montenegro, Dante Minniti, Javier Alonso-García +4
We characterize the population of blue horizontal-branch (BHB) stars in the bulge-halo transition region of the Milky Way using the VISTA Variables in the Vía Láctea (VVV) ESO Publ…
Pulsating stars in Centauri: Near-IR properties and period-luminosity relations
Camila Navarrete, Márcio Catelan, Rodrigo Contreras Ramos +4
Centauri (NGC~5139) contains many variable stars of different types, including the pulsating type II Cepheids, RR Lyrae and SX Phoenicis stars. We carried out a deep, wide-fiel…
Near-IR period-luminosity relations for pulsating stars in Centauri (NGC 5139)
C. Navarrete, M. Catelan, R. Contreras Ramos +4
Centauri (NGC 5139) hosts hundreds of pulsating variable stars of different types, thus representing a treasure trove for studies of their corresponding period-luminosity (PL)…
Variable Stars in the Quintuplet stellar cluster with the VVV Survey
C. Navarro Molina, J. Borissova, M. Catelan +7
The Quintuplet cluster is one of the most massive star clusters in the Milky Way, situated very close to the Galactic center. We present a new search for variable stars in the vici…
New variable stars discovered in the fields of three Galactic open clusters using the VVV Survey
Tali Palma, Dante Minniti, Istvan Dékány +5
This project is a massive near-infrared (NIR) search for variable stars in highly reddened and obscured open cluster (OC) fields projected on regions of the Galactic bulge and disk…
An Updated Census of RR~Lyrae Stars in the Globular Cluster ~Centauri (NGC\,5139)
C. Navarrete, R. Contreras Ramos, M. Catelan +7
[ABRIDGED] Centauri (NGC 5139) contains large numbers of variable stars of different types and, in particular, more than a hundred RR Lyrae stars. We have conducted a variabili…
Variable stars in the VVV globular clusters. I. 2MASS-GC02 and Terzan10
Javier Alonso-García, István Dékány, Márcio Catelan +5
The VISTA Variables in the Via Lactea (VVV) ESO Public Survey is opening a new window to study the inner Galactic globular clusters using their variable stars. These globular clust…
The VVV Templates Project. Towards an Automated Classification of VVV Light-Curves. I. Building a database of stellar variability in the near-infrared
R. Angeloni, R. Contreras Ramos, M. Catelan +50
Context. The Vista Variables in the Vía Láctea (VVV) ESO Public Survey is a variability survey of the Milky Way bulge and an adjacent section of the disk carried out from 2010 on E…