activity
20102026
most citedAn investigation of the close environment of beta Cep with the VEGA/CHARA interferometer

10 citations · 14 across the 6 of their papers we have counts for

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6 papers · 1 filter

astro-ph.IM2026

Self-calibration of adaptive optics systems. Application to the THEMIS solar telescope

Clementine Bechet, Eric Thiebaut, Michel Tallon +3

The interaction matrix models the effects of deformable mirror (DM) commands as perceived by the wavefront sensor (WFS) and is the cornerstone of the Adaptive Optics (AO) control.…

astro-ph.IM2026

SAXO+, the second-stage adaptive optics for SPHERE: NCPA compensation and dark-hole loop with a pyramid wavefront sensor

Johan Mazoyer, Charles Goulas, Raphaël Galicher +21

The SAXO+ upgrade of the VLT/SPHERE adaptive optics system introduces a second-stage near-infrared pyramid wavefront sensor to improve high-contrast imaging, making accurate calibr…

astro-ph.IM2024★ 1 cited

Upgrading SPHERE with the second stage AO system SAXO+: non-common path aberrations estimation and correction

Johan Mazoyer, Charles Goulas, Fabrice Vidal +16

SAXO+ is a planned enhancement of the existing SAXO, the VLT/ SPHERE adaptive optics system, deployed on ESO's Very Large Telescope. This upgrade is designed to significantly enhan…

astro-ph.IM2024★ 2 cited

Numerical simulations for the SAXO+ upgrade: Performance analysis of the adaptive optics system

Charles Goulas, Raphaël Galicher, Fabrice Vidal +16

SPHERE, operating at the VLT since 2014, is currently one of the high-contrast instruments with a higher performance. Its adaptive optics system, known as SAXO, will be upgraded to…

astro-ph.IM2023

SAXO+ upgrade : second stage AO system end-to-end numerical simulations

Charles Goulas, Fabrice Vidal, Raphaël Galicher +14

SAXO+ is a proposed upgrade to SAXO, the AO system of the SPHERE instrument on the ESO Very Large Telescope. It will improve the capabilities of the instrument for the detection an…

astro-ph.IM2022

Upgrading the high contrast imaging facility SPHERE: science drivers and instrument choices

A. Boccaletti, G. Chauvin, F. Wildi +71

SPHERE+ is a proposed upgrade of the SPHERE instrument at the VLT, which is intended to boost the current performances of detection and characterization for exoplanets and disks. S…