CV Lattes
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Universidade Presbiteriana Mackenzie (UPM). Centro de Rádioastronomia e Astrofísica Mackenzie (CRAAM) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Bachelor degree in Physics from Universidade Estadual de Campinas (1986), master in Astronomy from University of California at Berkeley (1992) and master in Astronomy from Universidade de São Paulo (1989) and PhD in Astronomy from University of California at Berkeley (1995). Postdoctoral fellowships at the California Institute of Technology - Caltech (1995-1997) and at UNICAMP (1997-1999). Livre-Docência from the University of São Paulo in 2008. I am a Full Professor at Universidade Presbiteriana Mackenzie and a researcher at the Mackenzie Center for Radio Astronomy and Astrophysics (CRAAM) since 1999. Coordinator of the Graduate Program in Space Geophysics and Applications (PPG-CEG) at Mackenzie from 2013 to 2023. Served as Coordinator of the Astronomy Area at FAPESP (2016-2022) and as a member of the Physics and Astronomy Advisory Committee of CNPq (2018-2021). Within the Brazilian Astronomical Society (SAB), I held several directorship roles: President (2012-2014), Treasurer (2015-2017), and General Secretary (2004-2008). Currently, I coordinate the Work Package WP123.600 "Stellar Rotation from Transits" in the context of the PLATO space mission (ESA). My research focuses on solar and stellar activity, particularly on solar and stellar spots and flares, solar and stellar atmospheres, star-planet interactions, planetary habitability, and radio astronomy. (Source: Lattes Curriculum)
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The visible matter in the Universe is predominantly in a plasma state, i.e., it is composed of magnetized and ionized or partially ionized gas. The High Energy and Plasma Astrophysics group (GAPAE) at IAG-USP, having as partners researchers of CRAAM, EACH-USP and UFABC, has been exploring, for more than two decades, fundamental plasmas and high energy processes in astrophysical sources, u…
This 5-year project intends to apply high precision spectroscopy to study important problems in exoplanet science, stellar astrophysics and the Galaxy. Stars will be characterized using the line-by-line differential technique, in order to obtain precise chemical abundances with small errors of 0.01 - 0.02 in solar-metallicity stellar twins, or about 0.03 - 0.05 dex in metal-poor stars. Fu…
Ground- and space-based observations of solar flares from radio wavelengths to gamma-rays have produced considerable insights but raised several unsolved controversies. The last unexplored wavelength frontier for solar flares is in the range of submillimeter and infrared wavelengths. Although the central focus of this proposal is on the description of solar activity at sub-THz and THz fre…
(Only some records are available in English at this moment)
This postdoctoral research project aims to better understand stellar activity from the characterization of features on the surface of the star such as spots and faculae. One way of doing this is from the modeling of signatures in the stellar light curve when a transiting planet eclipses such spots. From this modeling, physical properties of spots such as size, intensity, temperatura and m…
The aim of this study is to quantitatively estimate the atmospheric mass loss of planet Mars. It is based on the hypothesis of star-planet interactions, which lead to the dissipation of atmospheric gases from the planet due to processes such as photoevaporation, solar wind, and flares caused by solar activity. Equations describing these phenomena will be employed and applied to planet Mar…
Microorganisms are of utmost importance within Astrobiology, which is the field responsible for understanding life, as well as its origin and evolution on Earth and in the rest of the Universe. As such, one of the most important points within this area is the search for life on other planets, including Mars. In our Solar System, Mars is one of the main candidates, given the conditions on …
Exoplanet atmospheres are our only window to study the physical and chemical processes that occur on distant worlds. Such processes are important tracers of the origins of evolution of planetary systems. These are also paramount to better understand how common or unique are the conditions that lead to the emergence of life, which can leave precise spectroscopic traces in exoplanetary a…
(Only some records are available in English at this moment)
Transmission spectroscopy proves highly effective in probing and measuring the composition and properties of exoplanet atmospheres. Successfully applied to a plethora of exoplanets, primarily using HST and JWST, this technique demands dedicated modeling efforts to grasp the wavelength-dependent luminosity of the occulted star, which was the primary focus in the initial phase of the PhD re…
We have implemented in the PhD project the study of planetary atmospheres by analysing their composition during a transit. One of the major factors that impact in the evolution of an atmosphere is stellar activity. Therefore, by looking at the atmosphere of a planet, we can have a direct detection of the effects arising from this phenomena. For example, the UV radiation of the star can in…
Among the exoplanets detection methods, the planetary transits has been of great importance in the last few years, with a large number of discoveries and important space missions ongoing. More recently, researchers have been studying the possibility of detecting exomoons. The most promising technique for that is planetary transits. Presently, we are developing our PhD program with a searc…
| 2 / 2 | Ongoing grants |
| 18 / 12 | Completed research grants |
| 1 / 1 | Ongoing scholarships in Brazil |
| 19 / 11 | Completed scholarships in Brazil |
| 3 / 3 | Completed scholarships abroad |
| 43 / 29 | All research grants and scholarships |
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