92 citations · 2k across the 107 of their papers we have counts for
50 papers · 1 filter
Physical characterization of the local system NGC 1313: A flattening in its chemical abundance by past interactions
Belén Ojeda-Díaz, Sergio Torres-Flores, Daniela E. Olave-Rojas +5
Interacting galaxies provide unique information on morphological transformation, enhanced star formation, and chemical evolution, and thus contribute to understanding the complex e…
OJALÁ: Optimizing J-PAS Astronomy for Large-scale Analysis. A foundation model for the SED of galaxies, QSOs and stars
G. Martínez-Solaeche, R. M. González Delgado, R. García-Benito +37
The advent of large-scale surveys requires efficient ML techniques to exploit the information of massive datasets. We present OJALA, a transformer-based autoregressive foundation m…
Star-forming compact groups: Tracing the early evolutionary stages of compact group environments
Ortiz-Gómez S., Torres-Flores S., Monachesi A. +13
In the context of pre-processing -- a scenario in which galaxies quench their star formation within substructures before falling into clusters -- we investigate the impact of envir…
J-PAS: Discovery of RaJav, a bright spatially extended Ly Nebula at z=2.25
P. T. Rahna, M. Akhlaghi, J. A. Fernández-Ontiveros +29
We report the discovery of a massive and potentially largest Ly Nebula, RaJav, at z=2.25, associated with a quasar pair: the bright SDSS~J162029.07+433451.1 (hereafter J1620+433…
The S-PLUS Fornax Project (S+FP): Mapping H+[NII] emission in 77 Fornax galaxy members reaching 4 Rvir
A. R. Lopes, A. V. Smith Castelli, A. C. Krabbe +31
The Fornax cluster, the second-largest galaxy cluster within 20 Mpc, presents an ideal environment for studying environmental effects on galaxy evolution. Utilizing data from the S…
The Fourth S-PLUS Data Release: 12-filter photometry covering square degrees in the southern hemisphere
Fabio R. Herpich, Felipe Almeida-Fernandes, Gustavo B. Oliveira Schwarz +68
The Southern Photometric Local Universe Survey (S-PLUS) is a project to map sq deg of the sky using twelve bands (seven narrow and five broadbands). Observations are per…
Galaxy evolution in compact groups II. Witnessing the influence of major structures in their evolution
Gissel P. Montaguth, Antonela Monachesi, Sergio Torres-Flores +15
Compact groups (CGs) of galaxies are extreme environments for morphological transformations and the cessation of star formation. Though initially considered isolated, it is now rec…
Multiwavelength exploration of Extreme Emission Line Galaxies detected in miniJPAS survey
Iris Breda, Stergios Amarantidis, José M. Vilchez +24
Extreme Emission Line Galaxies (EELGs) stand as remarkable objects due to their extremely metal poor environment and intense star formation. Considered as local analogues of high-r…
The miniJPAS survey. Evolution of the luminosity and stellar mass functions of galaxies up to
L. A. Díaz-García, R. M. González Delgado, R. García-Benito +22
We aim at developing a robust methodology for constraining the luminosity and stellar mass functions (LMFs) of galaxies by solely using data from multi-filter surveys and testing t…
Bulge-disc decomposition of the Hydra cluster galaxies in 12 bands
Ciria Lima-Dias, Antonela Monachesi, Sergio Torres-Flores +15
When a galaxy falls into a cluster, its outermost parts are the most affected by the environment. In this paper, we are interested in studying the influence of a dense environment…
Galaxy evolution in compact groups I: Revealing a transitional galaxy population through a multiwavelength approach
Gissel P. Montaguth, Sergio Torres-Flores, Antonela Monachesi +12
Compact groups of galaxies (CGs) show members with morphological disturbances, mainly products of galaxy-galaxy interactions, thus making them ideal systems to study galaxy evoluti…
An Extended Catalogue of galaxy morphology using Deep Learning in Southern Photometric Local Universe Survey Data Release 3
C. R. Bom, A. Cortesi, U. Ribeiro +22
The morphological diversity of galaxies is a relevant probe of galaxy evolution and cosmological structure formation. However, in large sky surveys, even the morphological classifi…
A MUSE view of the multiple interacting system HCG 31
Diego A. Gómez-Espinoza, Sergio Torres-Flores, Verónica Firpo +4
We present, for the first time, spatially resolved spectroscopy for the entire Hickson Compact Group 31 obtained with the MUSE instrument at the VLT,and an in-depth analysis of thi…
The miniJPAS survey quasar selection II: Machine learning classification with photometric measurements and uncertainties
Natália V. N. Rodrigues, L. Raul Abramo, Carolina Queiroz +23
Astrophysical surveys rely heavily on the classification of sources as stars, galaxies or quasars from multi-band photometry. Surveys in narrow-band filters allow for greater discr…
The miniJPAS survey: The galaxy populations in the most massive cluster in miniJPAS, mJPC2470-1771
J. E. Rodríguez Martín, R. M. González Delgado, G. Martínez-Solaeche +33
The miniJPAS is a 1 deg survey that uses the Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS) filter system (54 narrow-band filters) with the Pathfi…
The miniJPAS survey: The role of group environment in quenching the star formation
R. M. González Delgado, J. E. Rodríguez-Martín, L. A. Díaz-García +32
The miniJPAS survey has observed deg on the AEGIS field with 60 bands (spectral resolution of ) in order to demonstrate the capabilities of the Javalambre-P…
WiNDS: An H kinematics survey of nearby spiral galaxies -- Vertical perturbations in nearby disk-type galaxies
Catalina Urrejola-Mora, Facundo A. Gómez, Sergio Torres-Flores +5
We present the Waves in Nearby Disk galaxies Survey (WiNDS) consisting of 40 nearby low inclination disk galaxies observed through H high-resolution Fabry Perot interferometry.…
Statistical analysis of global properties of galaxies in the direction of the Fornax cluster with S-PLUS
J. P. Calderón, A. V. Smith Castelli, E. V. R. de Lima +3
In the context of the S-PLUS Fornax Project (S+FP), we analyze the galaxy population in the direction of the Fornax cluster (~Mpc). We have 23 fields of size $1.4^{\ci…
S-PLUS: Exploring wide field properties of multiple populations in galactic globular clusters at different metallicities
Eduardo A. Hartmann, Charles J. Bonatto, Ana L. Chies-Santos +9
The presence of Multiple Stellar Populations (MSPs) in Galactic Globular Clusters (GCs) is a poorly understood phenomenon. By probing different spectral ranges that are affected by…
The miniJPAS survey quasar selection I: Mock catalogues for classification
Carolina Queiroz, L. Raul Abramo, Natália V. N. Rodrigues +27
In this series of papers, we employ several machine learning (ML) methods to classify the point-like sources from the miniJPAS catalogue, and identify quasar candidates. Since no r…
The complex globular cluster system of the S0 galaxy NGC 4382 in the outskirts of the Virgo Cluster
Carlos G. Escudero, Arianna Cortesi, Favio R. Faifer +10
NGC 4382 is a merger-remnant galaxy that has been classified as morphological type E2, S0, and even Sa. In this work, we performed a photometric and spectroscopic analysis of the g…
A new method to detect globular clusters with the S-PLUS survey
Maria Luísa Buzzo, Arianna Cortesi, Duncan A. Forbes +17
In this paper, we describe a new method to select globular cluster (GC) candidates, including galaxy subtraction with unsharp masking, template fitting techniques and the inclusion…
Black hole virial masses from single-epoch photometry: the miniJPAS test case
Jonás Chaves-Montero, Silvia Bonoli, Benny Trakhtenbrot +25
Precise measurements of black hole masses are essential to understanding the coevolution of these sources and their host galaxies. We develop a novel approach for computing black h…
Deep Learning Assessment of galaxy morphology in S-PLUS DataRelease 1
C. R. Bom, A. Cortesi, G. Lucatelli +14
The morphological diversity of galaxies is a relevant probe of galaxy evolution and cosmological structure formation, but the classification of galaxies in large sky surveys is bec…