205 citations · 769 across the 16 of their papers we have counts for
10 papers · 1 filter
The Gaia-ESO Public Spectroscopic Survey: Implementation, data products, open cluster survey, science, and legacy
S. Randich, G. Gilmore, L. Magrini +161
In the last 15 years different ground-based spectroscopic surveys have been started (and completed) with the general aim of delivering stellar parameters and elemental abundances f…
Photometric redshifts for the S-PLUS Survey: is machine learning up to the task?
E. V. R. Lima, L. Sodré, C. R. Bom +14
The Southern Photometric Local Universe Survey (S-PLUS) is a novel project that aims to map the Southern Hemisphere using a twelve filter system, comprising five broad-band SDSS-li…
The Fornax Cluster through S-PLUS
A. V. Smith Castelli, C. Mendes de Oliveira, F. Herpich +25
The Southern Photometric Local Universe Survey (S-PLUS) aims to map 9300 deg of the Southern sky using the Javalambre filter system of 12 optical bands, 5 Sloan-like…
UV upturn versus UV weak galaxies: differences and similarities of their stellar populations unveiled by a de-biased sample
M. L. L. Dantas, P. R. T. Coelho, P. Sánchez-Blázquez
The ultraviolet (UV) upturn is characterised by an unexpected up-rise of the UV flux in quiescent galaxies between the Lyman limit and 2500Å. By making use of colour-colour diagram…
AGN dichotomy beyond radio loudness: a Gaussian Mixture Model analysis
Pedro P. B. Beaklini, Allan V. C. Quadros, Marcio G. B. de Avellar +2
Since the discovery of Quasi-stellar Objects (QSOs), also known as quasars, they have been traditionally subdivided as radio-loud and radio-quiet sources. Whether such division is…
The S-PLUS: a star/galaxy classification based on a Machine Learning approach
M. V. Costa-Duarte, L. Sampedro, A. Molino +32
We present a star/galaxy classification for the Southern Photometric Local Universe Survey (S-PLUS), based on a Machine Learning approach: the Random Forest algorithm. We train the…
UV bright red-sequence galaxies: how do UV upturn systems evolve in redshift and stellar mass?
M. L. L. Dantas, P. R. T. Coelho, R. S. de Souza +1
The so-called ultraviolet (UV) upturn of elliptical galaxies is a phenomenon characterised by the up-rise of their fluxes in bluer wavelengths, typically in the 1,200-2,500A range.…
The Southern Photometric Local Universe Survey (S-PLUS): improved SEDs, morphologies and redshifts with 12 optical filters
C. Mendes de Oliveira, T. Ribeiro, W. Schoenell +142
The Southern Photometric Local Universe Survey (S-PLUS) is imaging ~9300 deg^2 of the celestial sphere in twelve optical bands using a dedicated 0.8 m robotic telescope, the T80-So…
A probabilistic approach to emission-line galaxy classification
R. S. de Souza, M. L. L. Dantas, M. V. Costa-Duarte +7
We invoke a Gaussian mixture model (GMM) to jointly analyse two traditional emission-line classification schemes of galaxy ionization sources: the Baldwin-Phillips-Terlevich (BPT)…
Is the cluster environment quenching the Seyfert activity in elliptical and spiral galaxies?
R. S. de Souza, M. L. L. Dantas, A. Krone-Martins +7
We developed a hierarchical Bayesian model (HBM) to investigate how the presence of Seyfert activity relates to their environment, herein represented by the galaxy cluster mass, $M…