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Related papers: Stellar Variability in the VVV survey

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The ESO public survey VISTA Variables in the V\'ia L\'actea (VVV) has contributed with deep multi-epoch photometry of the Galactic bulge and the adjacent part of the disk over 526 square degrees. More than a hundred cluster candidates have…

Solar and Stellar Astrophysics · Physics 2016-03-16 S. Ramírez Alegría , J. Borissova , A. -N. Chené , C. Bonatto , R. Kurtev , P. Amigo , M. Kuhn , M. Gromadzki , J. A. Carballo-Bello

Thanks to the VISTA Variables in the Via Lactea (VVV) ESO Public Survey it is now possible to explore a large number of objects in those regions. This paper addresses the variability analysis of all VVV point sources having more than 10…

The VISTA Variables in the V\'ia L\'actea (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.…

The VISTA Variable Survey (VVV) is able to map the Galaxy at l<0 with an unpaired depth (at least 3 mag deeper than 2MASS), opening new possibilities for studying the inner structure of the Milky Way. In this paper we concentrate on the…

Astrophysics of Galaxies · Physics 2012-09-28 C. González-Fernández , M. López-Corredoira , E. B. Amôres , D. Minniti , P. Lucas , I. Toledo

The bulge represents the best compromise between old and massive Galactic component, and as such its study is a valuable opportunity to understand how the bulk of the Milky Way formed and evolved. In addition, being the only bulge in which…

Astrophysics of Galaxies · Physics 2019-09-04 F. Surot , E. Valenti , S. L. Hidalgo , M. Zoccali , O. A. Gonzalez , E. Sökmen , D. Minniti , M. Rejkuba , P. W. Lucas

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. The search is performed using photometric NIR data in the…

We have used deep V-band and JHKs-band observations to investigate variability and stellar populations near the Galactic plane in Centaurus, and compared the observations with the Galactic model of Besancon. By applying image subtraction…

Astrophysics of Galaxies · Physics 2016-10-12 P. Pietrukowicz , D. Minniti , J. Alonso-Garcia , M. Hempel

We present VIVACE, the VIrac VAriable Classification Ensemble, a catalogue of variable stars extracted from an automated classification pipeline for the Vista Variables in the V\'ia L\'actea (VVV) infrared survey of the Galactic bar/bulge…

Solar and Stellar Astrophysics · Physics 2022-03-18 Thomas A. Molnar , Jason L. Sanders , Leigh C. Smith , Vasily Belokurov , Philip Lucas , Dante Minniti

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 and analyze variable…

The VISTA Variables in the V\'ia L\'actea (VVV) survey is one of six public ESO surveys, and is now in its 4th year of observing. Although far from being complete, the VVV survey has already delivered many results, some directly connected…

Instrumentation and Methods for Astrophysics · Physics 2014-06-13 Maren Hempel , Dante Minniti , István Dékány , Roberto K. Saito , Philip W. Lucas , Jim Emerson , Andrea V. Ahumada , Suzanne Aigrain , Maria Victoria Alonso , Javier Alonso-García , Eduardo B. Amôres , Rodolfo Angeloni , Julia Arias , Reba Bandyopadhyay , Rodolfo H. Barbá , Beatriz Barbuy , Gustavo Baume , Juan Carlos Beamin , Luigi Bedin , Eduardo Bica , Jordanka Borissova , Leonardo Bronfman , Giovanni Carraro , Márcio Catelan , Juan J. Clariá , Carlos Contreras , Nicholas Cross , Christopher Davis , Richard de Grijs , Janet E. Drew , Cecilia Fariña , Carlos Feinstein , Eduardo Fernández Lajús , Stuart Folkes , Roberto C. Gamen , Douglas Geisler , Wolfgang Gieren , Bertrand Goldman , Oscar González , Andrew Gosling , Guillermo Gunthardt , Sebastian Gurovich , Nigel C. Hambly , Margaret Hanson , Melvin Hoare , Mike J. Irwin , Valentin D. Ivanov , Andrés Jordán , Eamonn Kerins , Karen Kinemuchi , Radostin Kurtev , Andy Longmore , Martin López-Corredoira , Tom Maccarone , Eduardo Martín , Nicola Masetti , Ronald E. Mennickent , David Merlo , Maria Messineo , I. Félix Mirabel , Lorenzo Monaco , Christian Moni Bidin , Lorenzo Morelli , Nelson Padilla , Tali Palma , Maria Celeste Parisi , Quentin Parker , Daniela Pavani , Pawel Pietrukowicz , Grzegorz Pietrzynski , Giuliano Pignata , Marina Rejkuba , Alejandra Rojas , Alexandre Roman-Lopes , Maria Teresa Ruiz , Stuart E. Sale , Ivo Saviane , Matthias R. Schreiber , Anja C. Schröder , Saurabh Sharma , Michael Smith , Laerte Sodré , Mario Soto , Andrew W. Stephens , Motohide Tamura , Claus Tappert , Mark A. Thompson , Ignacio Toledo , Elena Valenti , Leonardo Vanzi , Walter Weidmann , Manuela Zoccali

Most of our knowledge about the structure of the Milky Way has come from the study of variable stars. Among the variables, mimicking the periodic variation of pulsating stars, are the eclipsing binaries. These stars are important in…

Solar and Stellar Astrophysics · Physics 2021-03-31 E. Botan , R. K. Saito , D. Minniti , A. Kanaan , R. Contreras Ramos , T. S. Ferreira , L. V. Gramajo , M. G. Navarro

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 vicinity of the cluster, using the five-year database of the…

Solar and Stellar Astrophysics · Physics 2016-07-26 C. Navarro Molina , J. Borissova , M. Catelan , J. Alonso-García , E. Kerins , R. Kurtev , P. W. Lucas , N. Medina , D. Minniti , I. Dékány

We study the structure of the inner Milky Way using the latest data release of the Vista Variables in Via Lactea (VVV) survey. The VVV is a deep near-infrared, multi-colour photometric survey with a coverage of 300 square degrees towards…

Long-period variable stars (LPVs) are pulsating red giants, primarily in the asymptotic giant branch phase, and they include both Miras and semi-regular variables (SRVs). Their period-age and period-luminosity relations enable us to trace…

The Milky Way (MW) bulge is a fundamental Galactic component for understanding the formation and evolution of galaxies, in particular our own. The ESO Public Survey VISTA Variables in the Via Lactea is a deep near-IR survey mapping the…

The VST Photometric Halpha Survey of the Southern Galactic Plane and Bulge (VPHAS+) is surveying the southern Milky Way in u, g, r, i and Halpha at 1 arcsec angular resolution. Its footprint spans the Galactic latitude range -5 < b < +5 at…

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 V\'ia L\'actea (VVV) ESO Public Survey data. The selection of BHB stars is made using…

Solar and Stellar Astrophysics · Physics 2019-03-06 Katherine Montenegro , Dante Minniti , Javier Alonso-García , Maren Hempel , Roberto K. Saito , Timothy C. Beers , David Brown

Context. The location of the Solar System constrains the detection of extragalactic sources beyond the Milky Way(MW) plane. The optical observations are hampered in the so--called Zone of Avoidance (ZOA) where stellar crowding and Galactic…

Context: The ESO Public Survey "VISTA Variables in the V\'ia L\'actea" (VVV) provides deep multi-epoch infrared observations for an unprecedented 562 sq. degrees of the Galactic bulge, and adjacent regions of the disk. In this survey nearly…

We present the first stellar density profile of the Milky Way bulge reaching latitude $b=0^\circ$. It is derived by counting red clump stars within the colour\--magnitude diagram constructed with the new PSF-fitting photometry from VISTA…

Astrophysics of Galaxies · Physics 2016-03-16 E. Valenti , M. Zoccali , O. A. Gonzalez , D. Minniti , J. Alonso-Garcia , E. Marchetti , M. Hempel , A. Renzini , M. Rejkuba