Search Results - "Langlois, Maud"
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Fast-moving features in the debris disk around AU Microscopii
Published in Nature (London) (08-10-2015)“…High-contrast imaging of the nearby, young, active late-type star AU Microscopii reveals five mysterious large-scale features in the southeast side of its…”
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REXPACO ASDI: joint unmixing and deconvolution of the circumstellar environment by angular and spectral differential imaging
Published in Monthly notices of the Royal Astronomical Society (04-11-2024)“…ABSTRACT Angular and spectral differential imaging is an observational technique of choice to investigate the immediate vicinity of stars. By leveraging the…”
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MODEL&CO: exoplanet detection in angular differential imaging by learning across multiple observations
Published in Monthly notices of the Royal Astronomical Society (03-10-2024)“…ABSTRACT Direct imaging of exoplanets is particularly challenging due to the high contrast between the planet and the star luminosities, and their small…”
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deep PACO: combining statistical models with deep learning for exoplanet detection and characterization in direct imaging at high contrast
Published in Monthly notices of the Royal Astronomical Society (01-01-2024)“…ABSTRACT Direct imaging is an active research topic in astronomy for the detection and the characterization of young substellar objects. The very high contrast…”
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Spirals, shadows, and precession in HD 100453 – I. The orbit of the binary
Published in Monthly notices of the Royal Astronomical Society (01-12-2020)“…ABSTRACT In recent years, several protoplanetary discs have been observed to exhibit spirals, both in scattered light and (sub)millimetre continuum data. The…”
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A wide-orbit giant planet in the high-mass b Centauri binary system
Published in Nature (London) (09-12-2021)“…Planet formation occurs around a wide range of stellar masses and stellar system architectures 1 . An improved understanding of the formation process can be…”
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High-contrast and resolution near-infrared photometry of the core of R136
Published in Monthly notices of the Royal Astronomical Society (01-05-2021)“…ABSTRACT We present the sharpest and deepest near-infrared photometric analysis of the core of R136, a newly formed massive star cluster at the centre of the…”
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A multiwavelength study of the debris disc around 49 Cet
Published in Monthly notices of the Royal Astronomical Society (21-09-2019)“…Abstract In a multiwavelength study of thermal emission and scattered light images we analyse the dust properties and structure of the debris disc around the…”
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An Unsupervised Patch-Based Approach for Exoplanet Detection by Direct Imaging
Published in 2018 25th IEEE International Conference on Image Processing (ICIP) (01-10-2018)“…The search for exoplanet is a very active topic in astronomy. Exoplanet detection by direct imaging requires both dedicated instruments to mask out the host…”
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Conference Proceeding -
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Workshop Summary: Exoplanet Orbits and Dynamics
Published in Publications of the Astronomical Society of the Pacific (01-10-2023)“…Abstract Exoplanetary systems show a wide variety of architectures, which can be explained by different formation and dynamical evolution processes. Precise…”
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Imaging radial velocity planets with SPHERE
Published in Monthly notices of the Royal Astronomical Society (11-10-2018)“…We present observations with the planet finder Spectro-Polarimetric High-contrast Exoplanet REsearch (SPHERE) of a selected sample of the most promising radial…”
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12
A multi-wavelength study of the debris disc around 49 Cet
Published in Monthly notices of the Royal Astronomical Society (17-07-2019)“…In a multi-wavelength study of thermal emission and scattered light images we analyse the dust properties and structure of the debris disc around the A1-type…”
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13
UV Spectropolarimetry With Polstar: Protoplanetary Disks
Published in Astrophysics and space science (01-12-2022)“…Polstar is a proposed NASA MIDEX mission that carries a high resolution UV spectropolarimeter capable of measure all four Stokes parameters onboard a 60 cm…”
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Shrinkage MMSE Estimators of Covariances Beyond the Zero-Mean and Stationary Variance Assumptions
Published in 2024 32nd European Signal Processing Conference (EUSIPCO) (26-08-2024)“…We tackle covariance estimation in low-sample scenarios, employing a structured covariance matrix with shrinkage methods. These involve convexly combining a…”
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Conference Proceeding -
15
Shrinkage MMSE estimators of covariances beyond the zero-mean and stationary variance assumptions
Published 11-03-2024“…We tackle covariance estimation in low-sample scenarios, employing a structured covariance matrix with shrinkage methods. These involve convexly combining a…”
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First observation of a quadruple asteroid -- Detection of a third moon around (130) Elektra with SPHERE/IFS
Published 09-02-2022“…A&A 658 L4 (2022) Aims. We aim to increase the contrast limits to detect new satellites orbiting known asteroids. We use cutting-edge data reduction techniques…”
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PACOME: Optimal multi-epoch combination of direct imaging observations for joint exoplanet detection and orbit estimation
Published 15-09-2023“…A&A 679, A38 (2023) Exoplanet detections and characterizations via direct imaging require high contrast and high angular resolution. These requirements…”
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Analytical modelling of adaptive optics systems: Role of the influence function
Published 19-06-2023“…Astronomy and Astrophysics - A&A, 2023, 674, pp.A112 Context. Adaptive optics (AO) is now a tool commonly deployed in astronomy. The real time correction of…”
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Blind and robust reconstruction of adaptive optics point spread functions for asteroid deconvolution and moon detection
Published 11-10-2024“…Adaptive Optics Systems IX, Jun 2024, Yokohama, Japan. pp.235 Initially designed to detect and characterize exoplanets, extreme adaptive optics systems (AO)…”
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MODEL&CO: Exoplanet detection in angular differential imaging by learning across multiple observations
Published 23-09-2024“…Direct imaging of exoplanets is particularly challenging due to the high contrast between the planet and the star luminosities, and their small angular…”
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Journal Article