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High reddening near the Galactic plane hampers observations and proper characterization of the globular clusters (GCs) located toward the inner regions of the Milky Way. The VISTA Variables in the Via Lactea (VVV) survey observed the…

The ESO public survey VISTA Variables in the V\'ia L\'actea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from $2009-2015$. Upon its conclusion, the complementary VVV eXtended (VVVX) survey has expanded…

Astrophysics of Galaxies · Physics 2024-10-02 R. K. Saito , M. Hempel , J. Alonso-García , P. W. Lucas , D. Minniti , S. Alonso , L. Baravalle , J. Borissova , C. Caceres , A. N. Chené , N. J. G. Cross , F. Duplancic , E. R. Garro , M. Gómez , V. D. Ivanov , R. Kurtev , A. Luna , D. Majaess , M. G. Navarro , J. B. Pullen , M. Rejkuba , J. L. Sanders , L. C. Smith , P. H. C. Albino , M. V. Alonso , E. B. Amôres , R. Angeloni , J. I. Arias , M. Arnaboldi , B. Barbuy , A. Bayo , J. C. Beamin , L. R. Bedin , A. Bellini , R. A. Benjamin , E. Bica , C. J. Bonatto , E. Botan , V. F. Braga , D. A. Brown , J. B. Cabral , D. Camargo , A. Caratti o Garatti , J. A. Carballo-Bello , M. Catelan , C. Chavero , M. A. Chijani , J. J. Clariá , G. V. Coldwell , C. Contreras Peña , R. Contreras Ramos , J. M. Corral-Santana , C. C. Cortés , M. Cortés-Contreras , P. Cruz , I. V. Daza-Perilla , V. P. Debattista , B. Dias , L. Donoso , R. D'Souza , J. P. Emerson , S. Federle , V. Fermiano , J. Fernandez , J. G. Fernández-Trincado , T. Ferreira , C. E. Ferreira Lopes , V. Firpo , C. Flores-Quintana , L. Fraga , D. Froebrich , D. Galdeano , I. Gavignaud , D. Geisler , O. E. Gerhard , W. Gieren , O. A. Gonzalez , L. V. Gramajo , F. Gran , P. M. Granitto , M. Griggio , Z. Guo , S. Gurovich , M. Hilker , H. R. A. Jones , R. Kammers , M. A. Kuhn , M. S . N. Kumar , R. Kundu , M. Lares , M. Libralato , E. Lima , T. J. Maccarone , P. Marchant Cortés , E. L. Martin , N. Masetti , N. Matsunaga , F. Mauro , I. McDonald , A. Mejías , V. Mesa , F. P. Milla-Castro , J. H. Minniti , C. Moni Bidin , K. Montenegro , C. Morris , V. Motta , F. Navarete , C. Navarro Molina , F. Nikzat , J. L. Nilo Castellón , C. Obasi , M. Ortigoza-Urdaneta , T. Palma , C. Parisi , K. Pena Ramírez , L. Pereyra , N. Perez , I. Petralia , A. Pichel , G. Pignata , S. Ramírez Alegría , A. F. Rojas , D. Rojas , A. Roman-Lopes , A. C. Rovero , S. Saroon , E. O. Schmidt , A. C. Schröder , M. Schultheis , M. A. Sgró , E. Solano , M. Soto , B. Stecklum , D. Steeghs , M. Tamura , P. Tissera , A. A. R. Valcarce , C. A. Valotto , S. Vasquez , C. Villalon , S. Villanova , F. Vivanco Cádiz , R. Zelada Bacigalupo , A. Zijlstra , M. Zoccali

We present a list of 34 neglected entries from star cluster catalogues located at relatively high galactic latitudes ($|b| >$ 15$^{\circ}$) which appear to be candidate late stages of star cluster dynamical evolution. Although…

Astrophysics · Physics 2009-10-31 E. Bica , B. X. Santiago , C. M. Dutra , H. Dottori , M. R. de Oliveira , D. Pavani

Here we present survey of proper motion stars towards the Galactic Bulge and an adjacent plane region base on VISTA-VVV data. The searching method based on cross-matching photometric Ks-band CASU catalogs. The most interesting discoveries…

Solar and Stellar Astrophysics · Physics 2013-10-16 M. Gromadzki , R. Kurtev , S. Folkes , J. C. Beamin , K. Pena Ramirez , J. Borissova , D. Pinfield , H. Jones , D. Minniti , V. D. Ivanov

We report 1,656 new star clusters found in the Galactic disk (|b|<20 degrees) beyond 1.2 kpc, using Gaia EDR3 data. Based on an unsupervised machine learning algorithm, DBSCAN, and followed our previous studies, we utilized a unique method…

Astrophysics of Galaxies · Physics 2022-12-28 Zhihong He , Xiaochen Liu , Yangping Luo , Kun Wang , Qingquan Jiang

Knowledge of the stellar content near the Sun is important for a broad range of topics ranging from the search for planets to the study of Milky Way structure. The most powerful method for identifying potentially nearby stars is proper…

We report the discovery of 652 star clusters, stellar groups and candidates in the Milky Way with WISE. Most of the objects are projected close to Galactic Plane and are embedded clusters. The present sample complements a similar study…

Astrophysics of Galaxies · Physics 2015-12-03 Denilso Camargo , Eduardo Bica , Charles Bonatto

Hot sub-luminous stars represent a population of stripped and evolved red giants that is located on the extreme horizontal branch. Since they exhibit a wide range of variability due to pulsations or binary interactions, it is crucial to…

Solar and Stellar Astrophysics · Physics 2025-01-29 P. Ranaivomanana , M. Uzundag , C. Johnston , P. J. Groot , T. Kupfer , C. Aerts

An earlier analysis of the Milky Way Star Cluster (MWSC) catalogue revealed an apparent lack of old (> 1 Gyr) open clusters in the solar neighbourhood (< 1 kpc). To fill this gap we undertook a search for hitherto unknown star clusters,…

Astrophysics of Galaxies · Physics 2014-09-05 S. Schmeja , N. V. Kharchenko , A. E. Piskunov , S. Röser , E. Schilbach , D. Froebrich , R. -D. Scholz

We present the first data release (DR1) of the VST Early-type GAlaxy Survey (VEGAS). This is a deep multi-band (u'g'r'i') imaging survey, carried out with the ESO VLT Survey Telescope (VST). To date, using about 90% of the total observing…

Astrophysics of Galaxies · Physics 2021-02-10 E. Iodice , M. Spavone , M. A. Raj , M. Capaccioli , M. Cantiello , VEGAS science team

We describe a large sample of 598 galaxy clusters and rich groups discovered in the data of the Faint Sky Variability Survey. The clusters have been identified using a fully automated, semi-parametric technique based on a maximum likelihood…

Astrophysics · Physics 2009-11-11 Ilona K. Soechting , Mark E. Huber , Roger G. Clowes , Steve B. Howell

The VISTA Variables in the V\'ia L\'actea (VVV) Survey is one of the six ESO public surveys currently ongoing at the VISTA telescope on Cerro Paranal, Chile. VVV uses near-IR ($ZYJHK_{\rm s}$) filters that at present provide photometry to a…

Solar and Stellar Astrophysics · Physics 2015-06-23 F. Gran , D. Minniti , R. K. Saito , C. Navarrete , I. Dékány , I. McDonald , R. Contreras Ramos , M. Catelan

We present a new reduction pipeline for the VIRCAM@VISTA detector and describe the method developed to obtain high-precision astrometry with the VISTA Variables in the V\'ia L\'actea (VVV) data set. We derive an accurate…

Instrumentation and Methods for Astrophysics · Physics 2015-06-24 M. Libralato , A. Bellini , L. R. Bedin , J. Anderson , G. Piotto , V. Nascimbeni , I. Platais , D. Minniti , M. Zoccali

The new multi-epoch near-infrared VVV survey (VISTA Variables in the Via Lactea) is sampling 562 sq. deg of the Galactic bulge and adjacent regions of the disk. Accurate astrometry established for the region surveyed allows the VVV data to…

Context. The ZOA does not allow clear optical observations of extragalactic sources behind the Milky Way due to the meaningful extinction of the optical emission of these objects. The observations in NIR wavelengths represent a potential…

Context. Large-scale surveys across wavelengths, aided by machine learning, have improved the detection of old open clusters in high-extinction Milky Way regions. Aims. We aim to confirm or reject automatically detected open clusters in…

Astrophysics of Galaxies · Physics 2025-03-26 C. O. Obasi , E. R. Garro , J. G. Fernández-Trincado , D. Minniti , M. Gómez , M. C. Parisi , M. Ortigoza-Urdaneta

Open clusters are central elements of our understanding of the Galactic disk evolution, as an accurate determination of their parameters leads to an unbiased picture of our Galaxy's structure. Extending the analysis towards fainter…

Astrophysics of Galaxies · Physics 2021-02-22 K. Peña Ramírez , C. González-Fernández , A. -N. Chené , S. Ramírez Alegría

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

A long-term project, aiming at systematic search for variable stars in Galactic Open Clusters, was started at the Geneva Observatory in 2002. We have been observing regularly a sample of twenty-seven Galactic Open Clusters in the U, B, V…

Solar and Stellar Astrophysics · Physics 2015-05-13 Claudia Greco , Nami Mowlavi , Laurent Eyer , Maxime Spano , Mihaly Varadi , Gilbert Burki

Automated search for star clusters in J,H,K_s data from 2MASS catalog has been performed using the method developed by Koposov et. al (2008). We have found and verified 153 new clusters in the interval of the galactic latitude -24 < b < 24…

Astrophysics of Galaxies · Physics 2010-11-26 Elena Glushkova , Sergey Koposov , Ivan Zolotukhin , Yuri Beletsky , Andrey Vlasov , Svetlana Leonova