É
Éric Thiébaut
Researcher at University of Lyon
Publications - 239
Citations - 5269
Éric Thiébaut is an academic researcher from University of Lyon. The author has contributed to research in topics: Adaptive optics & Iterative reconstruction. The author has an hindex of 37, co-authored 228 publications receiving 4805 citations. Previous affiliations of Éric Thiébaut include École normale supérieure de Lyon & Lyon College.
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Journal ArticleDOI
REXPACO: An algorithm for high contrast reconstruction of the circumstellar environment by angular differential imaging
TL;DR: In this paper, a regularized image reconstruction algorithm (REXPACO) is proposed to reconstruct the spatial distribution of light (total intensity) received from off-axis sources, in particular from circumstellar disks.
Journal ArticleDOI
Evidence for localized onset of episodic mass loss in Mira
Guy Perrin,S. T. Ridgway,Sylvestre Lacour,Xavier Haubois,Éric Thiébaut,Jean-Phillipe Berger,Marc G. Lacasse,Rafael Millan-Gabet,John D. Monnier,Ettore Pedretti,Sam Ragland,Wesley A. Traub +11 more
TL;DR: In this article, the authors used a simple core-halo model to represent the central object and the extended molecular layers but, in addition, they demonstrate a substantial asymmetry, which is consistent with a localized absorbing patch.
Proceedings ArticleDOI
A new representation and projection model for tomography, based on separable B-splines
TL;DR: The design of the projector, i.e., the numerical model of projection, is mostly influenced by the representation of the object of interest, decomposed on a discrete basis of functions as mentioned in this paper.
Journal ArticleDOI
PEX 1. Multispectral expansion of residual speckles for planet detection
Nicholas Devaney,Éric Thiébaut +1 more
TL;DR: Based on a multi-spectral series expansion of the diffraction pattern, this article derived a multimode model of the residuals which can be exploited to estimate and thus remove the residual starlight speckles in multiscale coronographic images.
Journal ArticleDOI
Imaging the spotty surface of Betelgeuse in the H band
X. Haubois,Guy Perrin,Sylvestre Lacour,Tijl Verhoelst,Serge Meimon,Laurent M. Mugnier,Éric Thiébaut,Jean-Philippe Berger,S. T. Ridgway,John D. Monnier,Rafael Millan-Gabet,Wesley A. Traub +11 more
TL;DR: In this article, H-band interferometric observations of Betelgeuse made at the three-telescope interferometer IOTA were used to understand the spatial variation of the photosphere, including its diameter, limb darkening, effective temperature, surrounding brightness, and bright (or dark) star spots.