145 citations · 436 across the 17 of their papers we have counts for
15 papers · 1 filter
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…
High contrast imaging wavefront sensor referencing from coronagraphic images
Nour Skaf, Olivier Guyon, Anthony Boccaletti +11
A key challenge of high contrast imaging (HCI) is to differentiate a speckle from an exoplanet signal. The sources of speckles are a combination of atmospheric residuals and aberra…
On-sky validation of image-based adaptive optics wavefront sensor referencing
Nour Skaf, Olivier Guyon, Eric Gendron +14
Differentiating between an exoplanet signal and residual speckle noise is a key challenge in high-contrast imaging. Speckles are due to a combination of fast, slow and static wavef…
MICADO PSF-Reconstruction work package description
Matteo Simioni, Carmelo Arcidiacono, Andrea Grazian +25
The point spread function reconstruction (PSF-R) capability is a deliverable of the MICADO@ESO-ELT project. The PSF-R team works on the implementation of the instrument software de…
On-sky demonstration of matched filters for wavefront measurements using ELT-scale elongated laser guide stars
A. G. Basden, L. Bardou, D. Bonaccini Calia +18
The performance of adaptive optics systems is partially dependant on the algorithms used within the real-time control system to compute wavefront slope measurements. We demonstrate…
William Herschel Telescope site characterization using the MOAO pathfinder CANARY on-sky data
O. A. Martin, C. M. Correia, E. Gendron +8
Canary is the Multi-Object Adaptive Optics (MOAO) pathfinder for the future MOAO-assisted Integral-Field Units (IFU) proposed for Extremely Large Telescopes (ELT). The MOAO concept…
Wave-front error breakdown in LGS MOAO validated on-sky by CANARY
O. A. Martin, É. Gendron., G. Rousset +7
CANARY is the multi-object adaptive optics (MOAO) on-sky pathfinder developed in the perspective of Multi-Object Spectrograph on Extremely Large Telescopes~(ELTs). In 2013, CANARY…
PSF reconstruction validated using on-sky CANARY data in MOAO mode
O. A. Martin, C. M. Correia, E. Gendron +8
In preparation of future Multi-Object Spectrographs (MOS) whose one of the major role is to provide an extensive statistical studies of high redshifted galaxies surveyed, the demon…
MICADO: first light imager for the E-ELT
R. Davies, J. Schubert, M. Hartl +80
MICADO will equip the E-ELT with a first light capability for diffraction limited imaging at near-infrared wavelengths. The instrument's observing modes focus on various flavours o…
Analysis of on-sky MOAO performance of CANARY using natural guide stars
Fabrice Vidal, Eric Gendron, Gerard Rousset +13
The first on-sky results obtained by CANARY, the Multi-Object Adaptive Optics (MOAO) demonstrator, are analysed. The data were recorded at the William Herschel Telescope, at the en…
Gemini multi-conjugate adaptive optics system review II: Commissioning, operation and overall performance
Benoit Neichel, François Rigaut, Fabrice Vidal +30
The Gemini Multi-conjugate Adaptive Optics System - GeMS, a facility instrument mounted on the Gemini South telescope, delivers a uniform, near diffraction limited images at near i…
Real-time correlation reference update for astronomical adaptive optics
Alastair Basden
The use of laser guide stars in astronomical adaptive optics results in elongated Shack-Hartmann wavefront sensor image patterns. Image correlation techniques can be used to determ…
Gems first science results
Benoit Neichel, Fabrice Vidal, Francois Rigaut +19
After 101 nights of commissioning, the Gemini MCAO system (GeMS) started science operations in December 2012. After a brief reminder on GeMS specificities, we describe the overall…
Gemini multi-conjugate adaptive optics system review I: Design, trade-offs and integration
Francois Rigaut, Benoit Neichel, Maxime Boccas +27
The Gemini Multi-conjugate adaptive optics System (GeMS) at the Gemini South telescope in Cerro Pach{ó}n is the first sodium-based multi-Laser Guide Star (LGS) adaptive optics syst…
EAGLE multi-object AO concept study for the E-ELT
G. Rousset, T. Fusco, F. Assemat +20
EAGLE is the multi-object, spatially-resolved, near-IR spectrograph instrument concept for the E-ELT, relying on a distributed Adaptive Optics, so-called Multi Object Adaptive Opti…