38 citations · 147 across the 23 of their papers we have counts for
21 papers · 1 filter
Chemo-dynamical stratification of the Galactic disc using \emph{Gaia}-ESO open clusters
Casmir O. Obasi, M. Gómez, J. G. Fernández-Trincado +5
Understanding how the Milky Way disc assembled and evolved requires tracing the coupled evolution of stellar chemistry and orbital structure over time. Open clusters, as coeval ste…
Discovery of a low surface brightness galaxy in the Zone of Avoidance using VVVX Deepstack imaging
J. L. Nilo-Castellón, L. Baravalle, D. Minniti +12
We report the discovery of VVVX J080705.96-273823.6, the first low-surface-brightness galaxy candidate identified in the Zone of Avoidance by the VISTA Variables in the Via Lactea…
The connection between surface brightness and satellite systems for central galaxies through Illustris TNG
Silvio Rodriguez, Yamila Yaryura, Jose A. Benavides +7
We analyse different properties of central low-surface-brightness galaxies (LSBGs) and their satellite systems using the simulation Illustris TNG-100, in order to deepen our unders…
Consensus based Algorithm for Nonparametric Detection of Star Clusters (CANDiSC)
C O Obasi, J G Fernandez Trincado, M Gomez +14
Context: The VISTA Variables in the Via Lactea (VVV) and its extension (VVVX) are near-infrared surveys mapping the Galactic bulge and adjacent disk. These data have enabled the di…
The VVVX quest for satellites around the Circinus galaxy
L. D. Baravalle, A. L. O'Mill, M. V. Alonso +10
The Circinus galaxy is the nearest type-2 Seyfert galaxy, which is at a distance of 4.2 Mpc. Its environment is challenging to explore because it is located at low Galactic latitud…
Faint galaxies in the Zone of Avoidance revealed by JWST/NIRCam
J. L. Nilo-Castellón, M. V. Alonso, L. Baravalle +12
The Zone of Avoidance (ZoA) remains one of the last frontiers in constructing a comprehensive three-dimensional map of the Universe. Galactic extinction, stellar crowding, and conf…
High energy gamma-ray sources in the VVV survey - III. Spectroscopic confirmation of an AGN at low Galactic latitudes
Eduardo O. Schmidt, Laura D. Baravalle, Ana Pichel +9
We aim to spectroscopically confirm the nature of VVV-J181258.71-314346.7, a candidate counterpart to the unassociated gamma-ray source 4FGLJ1812.8-3144. This object was selected b…
The VVV near-IR galaxy catalogue of the southern Galactic disc
M. V. Alonso, L. D. Baravalle, J. L. Nilo Castellón +16
The distribution of galaxies in the Zone of Avoidance (ZoA) is incomplete due to the presence of our own Galaxy. Our research focused on the identification and characterisation of…
The VISTA Variables in the Vía Láctea eXtended (VVVX) ESO public survey: Completion of the observations and legacy
R. K. Saito, M. Hempel, J. Alonso-García +143
The ESO public survey VISTA Variables in the Vía Láctea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from . Upon its conclusion, the c…
Galaxies in the zone of avoidance: Misclassifications using machine learning tools
P. Marchant Cortés, J. L. Nilo Castellón, M. V. Alonso +10
Automated methods for classifying extragalactic objects in large surveys offer significant advantages compared to manual approaches in terms of efficiency and consistency. However,…
Searching for globular clusters in the inner halo of the Circinus galaxy
C. O. Obasi, M. Gomez, D. Minniti +3
In this study, we search for Globular Clusters (GCs) in the inner halo of the Circinus galaxy using a combination of observational data. Our dataset includes observations from the…
The VVV near-IR galaxy catalogue in a Northern part of the Galactic disc
I. V. Daza-Perilla, M. A. Sgró, L. D. Baravalle +9
The automated identification of extragalactic objects in large surveys provides reliable and reproducible samples of galaxies in less time than procedures involving human interacti…
AGN candidates in the VVV near-IR galaxy catalogue
Laura D. Baravalle, Eduardo O. Schmidt, M. Victoria Alonso +7
The goal of this work is to search for Active Galactic Nuclei (AGN) in the Galactic disc at very low latitudes with |b| 2. For this, we studied the five sources from th…
The globular cluster system of the nearest Seyfert II galaxy Circinus
C. Obasi, M. Gómez, D. Minniti +7
Context. The globular cluster (GC) system of Circinus galaxy has not been probed previously partly because of the location of the galaxy at - 3.8 Galactic latitude which su…
A deep near-infrared view of the Ophiuchus galaxy cluster
D. Galdeano, G. Coldwell, F. Duplancic +8
Context: The Ophiuchus cluster of galaxies, located at low latitudes in the direction of the Galactic bulge, has been relatively poorly studied in comparison with other rich galaxy…
Galaxy clustering in the VVV Near-IR Galaxy Catalogue
Mario Soto, Mario A. Sgró, Laura D. Baravalle +7
Mapping galaxies at low Galactic latitudes and determining their clustering status are fundamental steps in defining the large-scale structure in the nearby Universe. The VVV Near-…
Spectroscopic study of the [OIII]5007 profile in Seyfert 1 galaxies
Eduardo O. Schmidt, Laura D. Baravalle, Adriana R. Rodríguez-Kamenetzky
The spectra of active galactic nuclei usually exhibit wings in some emission lines, such as [OIII]5007,4959, with these wings generally being blueshifted and related to strong…
The VVV Near-IR Galaxy Catalogue beyond the Galactic disk
Laura D. Baravalle, M. Victoria Alonso, Dante Minniti +7
Knowledge about the large-scale distribution of galaxies is far from complete in the Zone of Avoidance, which is mostly due to high interstellar extinction and to source confusion…
A Color-Excess Extinction map of the Southern Galactic disk from the VVV and GLIMPSE Surveys
M. Soto, R. Barbá, D. Minniti +24
An improved high-resolution and deep A foreground dust extinction map is presented for the Galactic disk area within , $-1.0^{\c…
The First Galaxy Cluster Discovered by the VISTA Variables in the Vía Láctea Survey
L. D. Baravalle, J. L. Nilo Castellón, M. V. Alonso +12
We report the first confirmed detection of the galaxy cluster VVV-J144321-611754 at very low latitudes (l = 315.836, b = -1.650) located in the tile d015 of the…
Searching for Extragalactic Sources in the VISTA Variables in the Vía Láctea Survey
Laura D. Baravalle, M. Victoria Alonso, José L. Nilo Castellón +2
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 charact…