International audience
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July 2013 (v1)Journal articleUploaded on: December 4, 2022
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July 2013 (v1)Journal article
International audience
Uploaded on: February 22, 2023 -
July 2013 (v1)Journal article
International audience
Uploaded on: December 4, 2022 -
February 2012 (v1)Journal article
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Uploaded on: December 4, 2022 -
October 2019 (v1)Journal article
The James Webb Space Telescope will offer high-angular resolution observing capability in the near-infrared with masking interferometry on NIRISS, and coronagraphic imaging on NIRCam & MIRI. Full aperture kernel-phase based interferometry complements these observing modes, probing for companions at small separations while preserving the...
Uploaded on: December 3, 2022 -
March 2019 (v1)Journal article
Kernel-phase observables extracted from mid- to high-Strehl images are proving to be a powerful tool to probe within a few angular resolution elements of point sources. The attainable contrast is limited, however, by the dynamic range of the imaging sensors. The Fourier interpretation of images with pixels exposed beyond the saturation has so...
Uploaded on: December 4, 2022 -
February 2018 (v1)Journal article
International audience
Uploaded on: December 4, 2022 -
January 1, 2018 (v1)Journal article
International audience
Uploaded on: December 4, 2022 -
June 2020 (v1)Journal article
Context. Since 1995 and the first discovery of an exoplanet orbiting a main-sequence star, 4000 exoplanets have been discovered using several techniques. However, only a few of these exoplanets were detected through direct imaging. Indeed, the imaging of circumstellar environments requires high-contrast imaging facilities and accurate control...
Uploaded on: December 4, 2022 -
May 2021 (v1)Journal article
Imaging faint objects, such as exoplanets or disks, around nearby stars is extremely challenging because host star images are dominated by the telescope diffraction pattern. Using a coronagraph is an efficient solution for removing diffraction but requires an incoming wavefront with good quality to maximize starlight rejection. On the ground,...
Uploaded on: December 4, 2022