Observatório Nacional/MCTI
77 General José Cristino Street, 20921-400, Room 311
Rio de Janeiro RJ, Brazil
madeira@on.br
+55 (21) 3504-9218
I'm a planetary scientist and Permanent Researcher at the National Observatory (Brazil). I hold a PhD in Physics from São Paulo State University (Brazil) and completed a postdoctoral fellowship at the Institut de Physique du Globe de Paris (France) from 2023 to 2025.
My research is dedicated to advancing the understanding of the formation, evolution, and composition of planetary bodies. I have a strong background in investigating the origin and dynamics of satellites, rings, and minor bodies, with a primary focus on numerical simulations and analytical modeling.
I have extensive experience with a range of computational tools, including N-body integrators, hydrodynamics solvers, and smoothed particle hydrodynamics (SPH) codes. I contributed to NASA's DART mission and am currently a team member of ESA's Hera mission.
My work has been recognized with the Wagner Sessin Award in Dynamical and Planetary Astronomy and the Best Thesis Award from São Paulo State University.
Research Topics
- Composition: composition of the Moon and exoplanet atmospheres.
- Giant impacts: formation of the Moon, formation of Phobos and Deimos, and exoplanet formation.
- Perturbations on small bodies: solar radiation, plasma drag, Lorentz forces, tides, and Yarkovsky effect.
- Ring dynamics: stability and formation of planetary rings and arcs.
- Satellite formation: accretion in circumplanetary disks and rings, pebble accretion, gas-driven migration, tides, and ring torques.
- Small bodies: formation of binary systems, rings, and dynamics around small bodies.
- Small impacts: dust production due to meteoroid impacts.