Researcher at Observatório Nacional/MCTI.. My primary research areas include galactic archaeology, with a focus on the structure and formation of the Milky Way. My main research interests are the galactic disk and halo, stellar overdensities, tidal streams, chemical abundances, and metal-poor stars. I have extensive experience in handling data from major photometric, spectroscopic, and astrometric surveys (2MASS, SDSS, APOGEE, SEGUE, LAMOST, GALAH, GAIA e S-PLUS), , as well as working with galactic models.Currently, I am a collaborator in the S-PLUS Survey, where I am co-leader of the Milky Way Working Group and am responsible for the calibration of the S-PLUS Ultra Short Survey. I am also a co-founder of a Brazilian interinstitutional group dedicated to the weekly discussion of papers in the galactic and stellar fields. Additionally, I am referee for the Astrophysical Journal (ApJ) and the Monthly Notices of the Royal Astronomical Society (MNRAS). Furthermore, I am a member of the National Time Allocation Committee (NTAC) for the Gemini telescope. (Source: Lattes Curriculum)
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The Universe is chemically complex, having more than 13 billion years to build the tremendous diversity observed today. All of this complexity, however, has started from roughly two very simple ingredients: hydrogen and helium. The first stars to be born in the Universe were massive and rapidly-evolving, providing the chemical seeds to form the subsequent stellar generation, dubbed as the…
Monoceros was discovered as an extensive low-latitude substructure, located above and below the Galactic disk toward the anticenter, extending over 100 degrees across the sky. Since its discovery, its nature has been under discussion, and it could have a Galactic origin or be a remnant of a dwarf galaxy accreted by the Milky Way. To explore stellar overdensities, recent works have shown t…
The main goal of this project is to find UltraMetal-Poor Stars in the photometric surveys forfuture statistical studies. With the advent of SDSS, SkyMapper, Pan-STARRS, DES, LSST andJPAS (in two-three years time scale), etc, there is a large archival source for developing newtechniques (e.g. artificial neural network) for finding low-metallicity stars. The identifiedobjects will ultimatel…
Ultra-faint Dwarf Galaxies are essential objects for studying the early chemical evolution of the Universe, the first stars formed in the Universe, and for restricting models of galaxy formation and evolution. In this sense, the combination of multi-band photometric data and astrometric information from S-PLUS and Gaia, respectively, allows us to resolve these stellar populations of the n…
| 3 / 3 | Completed scholarships in Brazil |
| 1 / 1 | Completed scholarships abroad |
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