Fábio Fialho
A5061426693- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Data Mining Algorithms and Applications
- Data Quality and Management
- Adaptive optics and wavefront sensing
- Inertial Sensor and Navigation
- Astro and Planetary Science
- Astrophysics and Star Formation Studies
- Spacecraft Design and Technology
- Astronomical Observations and Instrumentation
- Calibration and Measurement Techniques
- CCD and CMOS Imaging Sensors
- Gamma-ray bursts and supernovae
- Infrared Target Detection Methodologies
- Coastal and Marine Management
- Coral and Marine Ecosystems Studies
- Optical Coatings and Gratings
- Vehicle Dynamics and Control Systems
- Solar and Space Plasma Dynamics
- Archaeological Research and Protection
- Real-time simulation and control systems
- Geophysics and Sensor Technology
- Spacecraft Dynamics and Control
- Spectroscopy and Laser Applications
- Magnetic Bearings and Levitation Dynamics
Universidade Federal de Santa Catarina
2025
Laboratoire d’études spatiales et d’instrumentation en astrophysique
2006-2022
Observatoire de Paris
2005-2022
Université de Versailles Saint-Quentin-en-Yvelines
2009-2022
Sorbonne Université
2009-2022
Université Paris Cité
2009-2022
Centre National de la Recherche Scientifique
2009-2022
Délégation Paris 7
2022
Université Paris Sciences et Lettres
2022
Universidade de São Paulo
2014-2019
<i>Context. <i/>CoRoT is a space telescope dedicated to stellar seismology and the search for extrasolar planets. The mission led by CNES in association with French laboratories has large international participation. European Space Agency (ESA), Austria, Belgium, Germany contribute payload, Spain Brazil ground segment. Development of spacecraft, which based on PROTEUS low earth orbit (LEO) recurrent platform, commenced October 2000, satellite was launched December 27, 2006. <i>Aims. <i/>The...
<i>Aims. <i/>We report the discovery of very shallow (), periodic dips in light curve an active G9V star observed by CoRoT satellite, which we interpret as caused a transiting companion. We describe 3-colour data and complementary ground-based observations that support planetary nature companion.<i>Methods. used colours information, good angular resolution photometric in- out- transit, adaptive optics imaging, near-infrared spectroscopy, preliminary results from radial velocity measurements,...
The transiting planet CoRoT-1b is thought to belong the <i>pM<i/>-class of planets, in which thermal emission dominates optical wavelengths. We present a detection its secondary eclipse CoRoT white channel data, whose response function goes from ~400 ~1000 nm. used two different filtering approaches, and several methods evaluate significance eclipse. detect centered within 20 min at expected times for circular orbit, with depth %. center translated 1-<i>σ<i/> upper limit planet's...
Context . The ESA PLATO space mission is devoted to unveiling and characterizing new extrasolar planets their host stars. This will encompass a very large (>2100 deg 2 ) field of view, granting it the potential survey up one million stars depending on final observation strategy. telemetry budget spacecraft cannot handle transmitting individual images for such huge stellar sample at right cadence, so development an appropriate strategy perform on-board data reduction mandatory. Aims We...
Abstract Autonomous star trackers are crucial attitude sensors for spacecraft three-axis control. They the most accurate commercial-off-the-shelf available. An autonomous tracker is an optoelectronic device that autonomously determines spacecraft’s attitude, using embedded catalog compared to in-orbit images perform stellar field recognition. This work presents a computational tool calculate any specified sensor. To optimize sensor design, developed provides users with accuracy analysis...
We demonstrate the effectiveness and robustness of photometric correction algorithms for satellite pointing jitter in upcoming space mission COROT, which will study asteroseismology search exoplanets. Two based on model‐based estimation decorrelation are tested two ways: (1) with artificial light sources COROT CCD test bench, (2) on‐orbit photometry from Canadian MOST (Microvariability Oscillations Stars) satellite. Both effectively correct to yield expected results inputs. The data a...
This paper presents a new Tunable Filter Instrument for the SOAR telescope. The Brazilian Imager (BTFI) is versatile, technology, tunable optical imager to be used in seeing-limited mode and at higher spatial fidelity using SAM Ground-Layer Adaptive Optics facility instrument opens important science capabilities community, from studies of centers nearby galaxies insterstellar medium statistical cosmological investigations. BTFI takes advantage three technologies. imaging Bragg concept...
The COROT satellite contains a highly accurate stellar photometer with two channels that are respectively optimized for asteroseismology and terrestrial planet finding. channel can observe 10 bright objects per field 150 days (long run). At least five different long‐run fields will be observed over the spacecraft's lifetime. In order to sample every second, data downloaded must restricted fit within telemetry rate. Each object is therefore assigned digital mask. consist of total electron...
Abstract Observation of planetary transits and other cutting-edge scientific missions can take advantage affordable nanosatellites to probe interesting stellar targets. PicSat, a CubeSat dedicated observing the Beta Pictoris star system, was designed provide high-precision pointing, critical requirement for transit detection. PicSat’s Attitude Determination Control System, responsible delivering high-accuracy spacecraft requires development based on dynamic simulators. This paper presents...
We present here the set of corrections that will be applied to raw data CoRoT mission. The aim is correct for instrumental and environmental perturbations as well optimize duty-cycle, in order reach expected performances main are : correction electromagnetic interferences, suppression outliers, background correction, jitter integration time variations. focus on these emphasize their efficiency.