263 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Office National d'Études et de Recherches AérospatialesFR46 papers
- Centre National de la Recherche ScientifiqueFR39 papers
- Université Paris-SaclayFR36 papers
- Aix-Marseille UniversitéFR31 papers
- Institut de Planétologie et d'Astrophysique de GrenobleFR27 papers
- European Southern ObservatoryCL25 papers
- Laboratoire d’études spatiales et d’instrumentation en astrophysiqueFR24 papers
- Laboratoire d’Astrophysique de MarseilleFR22 papers
- Max Planck Institute for AstronomyDE21 papers
- Observatoire de ParisFR20 papers
- Sorbonne UniversitéFR19 papers
- Université Grenoble AlpesFR19 papers
50 papers
The equilibrium shape of (65) Cybele: primordial or relic of a large impact?
M. Marsset, M. Brož, J. Vermersch +24
Cybele asteroids constitute an appealing reservoir of primitive material genetically linked to the outer Solar System, and the physical properties of the largest members can be rea…
Revisiting the atmosphere of the exoplanet 51 Eridani b with VLT/SPHERE
S. B. Brown-Sevilla, A. -L. Maire, P. Mollière +27
[Full abstract in the paper] We aim to better constrain the atmospheric properties of the directly imaged exoplanet 51~Eri~b by using a retrieval approach on higher signal-to-noise…
The high-albedo, low polarization disk around HD 114082 harbouring a Jupiter-sized transiting planet
N. Engler, J. Milli, R. Gratton +36
We present new optical and near-IR images of debris disk around the F-type star HD 114082. We obtained direct imaging observations and analysed the TESS photometric time series dat…
Key wavefront sensors features for laser-assisted tomographic adaptive optics systems on the Extremely Large Telescope
Thierry Fusco, Guido Agapito, Benoit Neichel +10
Laser guide star (LGS) wave-front sensing (LGSWFS) is a key element of tomographic adaptive optics system. However, when considering Extremely Large Telescope (ELT) scales, the LGS…
In-depth direct imaging and spectroscopic characterization of the young Solar System analog HD 95086
C. Desgrange, G. Chauvin, V. Christiaens +48
Context. HD 95086 is a young nearby Solar System analog hosting a giant exoplanet orbiting at 57 au from the star between an inner and outer debris belt. The existence of additiona…
Validation of strategies for coupling exoplanet PSFs into single-mode fibres for high-dispersion coronagraphy
M. El Morsy, A. Vigan, M. Lopez +13
On large ground-based telescopes, the combination of extreme adaptive optics (ExAO) and coronagraphy with high-dispersion spectroscopy (HDS), sometimes referred to as high-dispersi…
A SPHERE survey of self-shadowed planet-forming disks
A. Garufi, C. Dominik, C. Ginski +20
To date, nearly two hundred planet-forming disks have been imaged with high resolution. Our propensity to study bright and extended objects is however biasing our view of the disk…
An extended scattered light disk around AT Pyx -- Possible planet formation in a cometary globule
C. Ginski, R. Gratton, A. Bohn +35
To understand how the multitude of planetary systems that have been discovered come to be, we need to study systems at different evolutionary stages, with different central stars b…
Analysis of satellite-to-ground quantum key distribution with adaptive optics
Valentina Marulanda Acosta, Daniele Dequal, Matteo Schiavon +4
Future quantum communication infrastructures will rely on both terrestrial and space-based links integrating high-performance optical systems engineered for this purpose. In space-…
Signs of late infall and possible planet formation around DR Tau using VLT/SPHERE and LBTI/LMIRCam
D. Mesa, C. Ginski, R. Gratton +31
Context. Protoplanetary disks around young stars often contain substructures like rings, gaps, and spirals that could be caused by interactions between the disk and forming planets…
Wavefront tolerances of space-based segmented telescopes at very high contrast: Experimental validation
Iva Laginja, Jean-François Sauvage, Laurent M. Mugnier +8
Context: The detection and characterization of Earth-like exoplanets (exoEarths) from space requires exquisite wavefront stability at contrast levels of . On segmented te…
SPRINT: System Parameters Recurrent INvasive Tracking, a fast and least-cost online calibration strategy for adaptive optics
C. T. Heritier, T. Fusco, S. Oberti +3
The future large adaptive telescopes will trigger new constraints for the calibration of Adaptive Optics (AO) systems equipped with pre-focal Deformable Mirrors (DM). The image of…
Perturbers: SPHERE detection limits to planetary-mass companions in protoplanetary disks
R. Asensio-Torres, Th. Henning, F. Cantalloube +25
The detection of a wide range of substructures such as rings, cavities and spirals has become a common outcome of high spatial resolution imaging of protoplanetary disks, both in t…
The SPHERE infrared survey for exoplanets (SHINE) -- II. Observations, Data reduction and analysis Detection performances and early-results
M. Langlois, R. Gratton, A. -M. Lagrange +118
Over the past decades, direct imaging has confirmed the existence of substellar companions (exoplanets or brown dwarfs) on wide orbits (>10 au) from their host stars. To understand…
The focal-plane assisted pyramid wavefront sensor: enabling frame-by-frame optical gains tracking
Vincent Chambouleyron, Olivier Fauvarque, Jean-François Sauvage +2
With its high sensitivity, the Pyramid wavefront sensor (PyWFS) is becoming an advantageous sensor for astronomical adaptive optics (AO) systems. However, this sensor exhibits sign…
A single-armed spiral in the protoplanetary disk around HD34282 ?
J. de Boer, C. Ginski, G. Chauvin +17
During the evolution of protoplanetary disks into planetary systems we expect to detect signatures that trace mechanisms such as planet-disk interaction. Protoplanetary disks displ…
Joint estimation of atmospheric and instrumental defects using a parsimonious point spread function model.On-sky validation using state of the art worldwide adaptive-optics assisted instruments
Olivier Beltramo-Martin, Romain Fétick, Benoit Neichel +1
Modeling the optical point spread function (PSF) is particularly challenging for adaptive optics (AO)-assisted observations owing to the its complex shape and spatial variations. W…
Super-resolution in vivo retinal imaging using structured illumination ophthalmoscopy
Yann Lai-Tim, Laurent Mugnier, Léa Krafft +6
Structured illumination microscopy (SIM) is one of the most versatile super-resolution techniques. Yet, its application to live imaging has been so far mainly limited to fluorescen…
Spirals inside the millimeter cavity of transition disk SR 21
G. A. Muro-Arena, C. Ginski, C. Dominik +22
Hydrodynamical simulations of planet-disk interactions suggest that planets may be responsible for a number of the sub-structures frequently observed in disks in both scattered lig…
Design of the HARMONI Pyramid WFS module
Noah Schwartz, Jean-François Sauvage, Edgard Renault +12
Current designs for all three extremely large telescopes show the overwhelming adoption of the pyramid wavefront sensor (P-WFS) as the WFS of choice for adaptive optics (AO) system…
SPHERE+: Imaging young Jupiters down to the snowline
A. Boccaletti, G. Chauvin, D. Mouillet +130
SPHERE (Beuzit et al,. 2019) has now been in operation at the VLT for more than 5 years, demonstrating a high level of performance. SPHERE has produced outstanding results using a…
Reconstruction of the ground-layer adaptive-optics point spread function for MUSE Wide Field Mode observations
Thierry Fusco, R. Bacon, S. Kamann +7
Here we describe a simple, efficient, and most importantly fully operational point-spread-function(PSF)-reconstruction approach for laser-assisted ground layer adaptive optics (GLA…
Optical Incoherence Tomography: a method to generate tomographic retinal cross-sections with non-interferometric imaging systems
Pedro Mecê, Elena Gofas-Salas, Michel Paques +2
Optical tomographic cross-sectional images of biological samples were made possible by interferometric imaging techniques such as Optical Coherence Tomography (OCT). Owing to its u…
Space-Ground Coherent Optical links: Ground Receiver Performance With Adaptive Optics and Digital Phase-Locked Loop
Laurie Paillier, Raphaël Le Bidan, Jean-Marc Conan +3
In the framework of optical high data rate satellite-to-ground links, we investigate the performance of a coherent receiver which combines an adaptive optics system and a digital c…