Time-varying phenomena are one of the most substantial sources of astrophysical information, and their study has led to many fundamental discoveries in modern astronomy. We have developed an automated tool to search for and analyze variable sources in the near-infrared K s band using the data fro...
Medina, N.
,
Borissova, J.
,
Bayo, A.
,
Kurtev, R.
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Navarro Molina, C.
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Kuhn, M.
,
Kumar, N.
,
Lucas, P.W.
,
Catelan, M.
,
Minniti, D.
,
Smith, L.C.
,
[An Automated Tool to Detect Variable Sources in the Vista Variables in the Vía Láctea Survey: The VVV Variables (V4) Catalog of Tiles d001 and d002]
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An Automated Tool to Detect Variable Sources in the Vista Variables in the Vía Láctea Survey: The VVV Variables (V4) Catalog of Tiles d001 and d002
Context. The inner regions of the Galaxy are severely affected by extinction, which limits our capability to study the stellar populations present there. The Vista Variables in the Vía Láctea (VVV) ESO Public Survey has observed this zone at near-infrared wavelengths where reddening is highly dim...
Alonso-García, J.
,
Saito, R.K.
,
Hempel, M.
,
Minniti, D.
,
Pullen, J.
,
Catelan, M.
,
Ramos, R.C.
,
Cross, N.J.G.
,
Gonzalez, O.A.
,
Lucas, P.W.
,
Palma, T.
,
Valenti, E.
,
Zoccali, M.
,
[Milky Way demographics with the VVV survey: IV. PSF photometry from almost one billion stars in the Galactic bulge and adjacent southern disk]
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Milky Way demographics with the VVV survey: IV. PSF photometry from almost one billion stars in the Galactic bulge and adjacent southern disk
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 search for extragalactic sources in the VISTA Variables in the Vía Láctea survey that are hidden by the Galaxy. Herein, we describe our photometric procedure to find and characterize extragalactic objects using a combination of SExtractor and PSFEx. It was applied in two tiles of the survey: d...
Baravalle, L.D.
,
Alonso, M.V.
,
Castellón, J.L.N.
,
Beamín, J.C.
,
Minniti, D.
,
[Searching for extragalactic sources in the VISTA variables in the Via láctea survey]
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Searching for extragalactic sources in the VISTA variables in the Via láctea survey