ω 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-field, near-infrared (IR) variability survey of ω Cen, using the VISTA telescope. We assembled an unprecedented homogeneous...
Navarrete, C.
,
Catelan, M.
,
Contreras Ramos, R.
,
Alonso-García, J.
,
Gran, F.
,
Dékány, I.
,
Minniti, D.
,
[Pulsating stars in ω Centauri. Near-IR properties and period-luminosity relations]
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Pulsating stars in ω Centauri. Near-IR properties and period-luminosity relations
Deep near-IR images from the VISTA Variables in the V a L ctea (VVV) Survey were used to search for RR Lyrae stars within 100 arcmin from the Galactic Center. A large sample of 960 RR Lyrae of type ab (RRab) stars were discovered. A catalog is presented featuring the positions, magnitudes, colors...
Contreras Ramos, R.
,
Minniti, D.
,
Gran, F.
,
Zoccali, M.
,
Alonso-Garcia, J.
,
Huijse, P.
,
Navarro, M.G.
,
Rojas-Arriagada, A.
,
Valenti, E.
,
[The VVV Survey RR Lyrae Population in the Galactic Center Region]
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The VVV Survey RR Lyrae Population in the Galactic Center Region
We use deep, multi-epoch near-IR images of the VISTA Variables in the Via Lictea (VVV) Survey to measure proper motions (PMs) of stars in the Milky Way globular cluster (GC) FSR1716 = VVV-GC05. The colormagnitude diagram of this object, made by using PM-selected members, shows an extended horizon...
Ramos, R.C.
,
Minniti, D.
,
Fernández-Trincado, J.G.
,
Alonso-Garcia, J.
,
Catelan, M.
,
Gran, F.
,
Hajdu, G.
,
Hanke, M.
,
Hempel, M.
,
Diaz, E.M.
,
Pérez-Villegas, A.
,
Rojas-Arriagada, A.
,
Zoccali, M.
,
[The Orbit of the New Milky Way Globular Cluster FSR1716 =VVV-GC05]
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The Orbit of the New Milky Way Globular Cluster FSR1716 =VVV-GC05
Context. In the last six years, the VISTA Variable in the Vía Láctea (VVV) survey mapped 562 sq. deg. across the bulge and southern disk of the Galaxy. However, a detailed study of these regions, which includes ∼36 globular clusters (GCs) and thousands of open clusters is by no means an easy chal...
Contreras Ramos, R.
,
Zoccali, M.
,
Rojas, F.
,
Rojas-Arriagada, A.
,
Gárate, M.
,
Huijse, P.
,
Gran, F.
,
Soto, M.
,
Valcarce, A.A.R.
,
Estévez, P.A.
,
Minniti, D.
,
[Proper motions in the VVV Survey: Results for more than 15 million stars across NGC 6544]
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Proper motions in the VVV Survey: Results for more than 15 million stars across NGC 6544
Context. The VISTA Variables in the Vía Láctea (VVV) is a near-IR time-domain survey of the Galactic bulge and southern plane. One of the main goals of this survey is to reveal the 3D structure of the Milky Way through their variable stars. In particular, enormous numbers of RR Lyrae stars have b...
Gran, F.
,
Minniti, D.
,
Saito, R. K.
,
Zoccali, M.
,
Gonzalez, O. A.
,
Navarrete, C.
,
Catelan, M.
,
Contreras Ramos, R.
,
Elorrieta, F.
,
Eyheramendy, S.
,
Jordán, A.
,
[Mapping the outer bulge with RRab stars from the VVV Survey]
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Mapping the outer bulge with RRab stars from the VVV Survey
Navarrete Silva, Camila Andrea
,
Catelan, M.|Contreras, R.
,
Alonso, J.
,
Gran, F.
,
Dekany, I.
,
Minniti, D.
,
[Near-IR period-luminosity relations for pulsating stars in omega Centauri (NGC 5139)]
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Near-IR period-luminosity relations for pulsating stars in omega Centauri (NGC 5139)
Elorrieta López, Felipe
,
Eyheramendy Duerr, Susana
,
Jordán Colzani, Andrés Cristóbal
,
Dekany, I.
,
Catelan, Márcio
,
Angeloni, R.
,
Alonso, J.
,
Contreras, R.
,
Gran, F.
,
Hajdu, G.
,
Espinoza, N.
,
Saito, R.
,
Minniti, D.
,
[A machine learned classifier for RR Lyrae in the VVV survey]
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A machine learned classifier for RR Lyrae in the VVV survey
Minniti, D.
,
Ramos, R. C.
,
Zoccali, Manuela
,
Rejkuba, M.
,
González, O. A.
,
Valenti, E.
,
Gran, F.
,
[Discovery of RR lyrae stars in the nuclear bulge of the Milky Way]
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Discovery of RR lyrae stars in the nuclear bulge of the Milky Way
Hempel, Maren
,
Catelan, M.
,
Carballo Bello, J. A.
,
Ramos, R. C.
,
Gran, F.
,
Hagdu, G.
,
Navarrete, C.
,
Zoccali, M.
,
Minniti, D.
,
Palma, T.
,
Dekany, I.
,
Rejkuba, M.
,
Pullen, J.
,
Alonso Garcia, J.
,
Barba, R.
,
Barbuy, B.
,
Bica, E.
,
Borissova, J.
,
Chene, A. N.
,
Claria, J. J.
,
Cohen, R. E.
,
Dias, B.
,
Emerson, J.
,
[FSR 1716: A New Milky Way Globular Cluster Confirmed Using VVV RR Lyrae Stars]
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FSR 1716: A New Milky Way Globular Cluster Confirmed Using VVV RR Lyrae Stars
Contreras Ramos, R.
,
Zoccali, Manuela
,
Rojas, F.
,
Rojas Arriagada, A.
,
Gárate, M.
,
Huijse, P.
,
Gran, F.
,
Valcarce, A. R.
,
Estévez, P. A.
,
Minniti, D.
,
[Proper motions in the VVV Survey: Results for more than 15 million stars across NGC 6544]
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Proper motions in the VVV Survey: Results for more than 15 million stars across NGC 6544