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A statistical study of lopsided galaxies using random forest
Valentina Fontirroig, Facundo A. Gomez, Marcelo Jaque Arancibia +2
Lopsided galaxies are late-type galaxies with a non-axisymmetric disk due to an uneven distribution of their stellar mass. Despite being a relatively common perturbation, several q…
The role of bars in triggering active galactic nuclei galaxies
V. Marels, V. Mesa, M. Jaque Arancibia +4
Bars are considered an efficient mechanism for transporting gas toward the central regions of galaxies, potentially enhancing nuclear activity. However, the extent to which bars in…
Stream Automatic Detection with Convolutional Neural Network (SAD-CNN)
Alex Vera-Casanova., Nicolas Monsalves Gonzalez, Facundo A. Gómez +8
Context. Galactic halos host faint substructures, such as stellar streams and shells, which provide insights into the hierarchical assembly history of galaxies. To date, such featu…
Stellar atmospheric parameters and chemical abundances of about 5 million stars from S-PLUS multi-band photometry
C. E. Ferreira Lopes, L. A. Gutiérrez-Soto, V. S. Ferreira Alberice +30
Context. Spectroscopic surveys like APOGEE, GALAH, and LAMOST have significantly advanced our understanding of the Milky Way by providing extensive stellar parameters and chemical…
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…