Wind-driven halo in high-contrast images-I. Analysis of the focal-plane images of SPHERE
Context. The wind-driven halo is a feature that is observed in images that were delivered by
the latest generation of ground-based instruments that are equipped with an extreme …
the latest generation of ground-based instruments that are equipped with an extreme …
SPHERE: the exoplanet imager for the Very Large Telescope
Observations of circumstellar environments that look for the direct signal of exoplanets and
the scattered light from disks have significant instrumental implications. In the past 15 years …
the scattered light from disks have significant instrumental implications. In the past 15 years …
Classification robustness to common optical aberrations
Computer vision using deep neural networks (DNNs) has brought about seminal changes in
people's lives. Applications range from automotive, face recognition in the security industry …
people's lives. Applications range from automotive, face recognition in the security industry …
HARMONI at ELT: overview of the capabilities and expected performance of the ELT's first light, adaptive optics assisted integral field spectrograph.
NA Thatte, D Melotte, B Neichel… - Ground-based and …, 2022 - spiedigitallibrary.org
HARMONI is the first light, adaptive optics assisted, integral field spectrograph for the
European Southern Observatory's Extremely Large Telescope (ELT). A work-horse …
European Southern Observatory's Extremely Large Telescope (ELT). A work-horse …
Physics-based model of the adaptive-optics-corrected point spread function-applications to the sphere/zimpol and muse instruments
Context. Adaptive optics (AO) systems greatly increase the resolution of large telescopes,
but produce complex point spread function (PSF) shapes, varying in time and across the …
but produce complex point spread function (PSF) shapes, varying in time and across the …
Imaging exoplanets with coronagraphic instruments
R Galicher, J Mazoyer - Comptes …, 2023 - comptes-rendus.academie-sciences …
L'exoplanétologie est un domaine très actif de l'astronomie moderne avec des questions
encore ouvertes: comment les systèmes planétaires se forment-ils et évoluent-ils; pourquoi …
encore ouvertes: comment les systèmes planétaires se forment-ils et évoluent-ils; pourquoi …
Apodized pupil Lyot coronagraphs for arbitrary apertures. V. Hybrid shaped pupil designs for imaging Earth-like planets with future space observatories
We introduce a new class of solutions for Apodized Pupil Lyot Coronagraphs (APLC) with
segmented aperture telescopes to remove broadband diffracted light from a star with a …
segmented aperture telescopes to remove broadband diffracted light from a star with a …
Direct imaging and spectroscopy of exoplanets with the ELT/HARMONI high-contrast module
Combining high-contrast imaging with medium-resolution spectroscopy has been shown to
significantly boost the direct detection of exoplanets. HARMONI, one of the first-light …
significantly boost the direct detection of exoplanets. HARMONI, one of the first-light …
Calibration of quasi-static aberrations in exoplanet direct-imaging instruments with a zernike phase-mask sensor-iii. on-sky validation in vlt/sphere
Second-generation exoplanet imagers using extreme adaptive optics (ExAO) and
coronagraphy have demonstrated their great potential for studying close circumstellar …
coronagraphy have demonstrated their great potential for studying close circumstellar …
Focal plane wavefront sensing using machine learning: performance of convolutional neural networks compared to fundamental limits
G Orban De Xivry, M Quesnel… - Monthly Notices of …, 2021 - academic.oup.com
Focal plane wavefront sensing (FPWFS) is appealing for several reasons. Notably, it offers
high sensitivity and does not suffer from non-common path aberrations (NCPAs). The price …
high sensitivity and does not suffer from non-common path aberrations (NCPAs). The price …