activity
20062024
most citedDiscovery of a planetary-mass companion within the gap of the transition disk around PDS 70

700 citations · 4.2k across the 89 of their papers we have counts for

collaborators

91 papers

astro-ph.IM2024★ 3 cited

High-contrast imager for complex aperture telescopes (HiCAT): 8. Dark zone demonstration with simultaneous closed-loop low-order wavefront sensing and control

Rémi Soummer, Emiel H. Por, Raphaël Pourcelot +27

We present recent laboratory results demonstrating high-contrast coronagraphy for the future space-based large IR/Optical/Ultraviolet telescope recommended by the Decadal Survey. T…

astro-ph.IM2024★ 6 cited

Strategy for sensing petal mode in presence of AO residual turbulence with pyramid wavefront sensor

Nicolas Levraud, Vincent Chambouleyron, Jean François Sauvage +9

With the Extremely Large Telescope-generation telescopes come new challenges. The complexity of these telescopes' pupil creates new problems for Adaptive Optics. In particular, the…

astro-ph.EP2023

The polarisation properties of the HD 181327 debris ring. Evidence for sub-micron particles from scattered light observations

Julien Milli, Elodie Choquet, Ryo Tazaki +26

Polarisation is a powerful remote-sensing tool to study the nature of particles scattering the starlight. It is widely used to characterise interplanetary dust particles in the Sol…

astro-ph.IM2023★ 18 cited

Modeling noise propagation in Fourier-filtering wavefront sensing, fundamental limits and quantitative comparison

Vincent Chambouleyron, Olivier Fauvarque, Cédric Plantet +5

Adaptive optics (AO) is a technique allowing to drastically improve ground-based telescopes angular resolution. The wavefront sensor (WFS) is one of the key components of such syst…

astro-ph.IM2022★ 5 cited

Optimizing Fourier-Filtering WFS to reach sensitivity close to the fundamental limit

Vincent Chambouleyron, Olivier Fauvarque, Cédric Plantet +5

To reach the full potential of the new generation of ground based telescopes, an extremely fine adjustment of the phase is required. Wavefront control and correction before detecti…

astro-ph.IM2022★ 1 cited

Three-sided pyramid wavefront sensor. II. Preliminary demonstration on the new CACTI testbed

Lauren Schatz, Johanan Codona, Joseph D. Long +17

The next generation of giant ground and space telescopes will have the light-collecting power to detect and characterize potentially habitable terrestrial exoplanets using high-con…