64 citations · 190 across the 17 of their papers we have counts for
18 papers · 1 filter
Improved prior for adaptive optics point spread function estimation from science images: Application for deconvolution
A. Lau, R. JL. Fétick, B. Neichel +2
Access to knowledge of the point spread function (PSF) of adaptive optics(AO)-assisted observations is still a major limitation when processing AO data. This limitation is particul…
The ESO's Extremely Large Telescope Working Groups
Paolo Padovani, Michele Cirasuolo, Remco van der Burg +82
Since 2005 ESO has been working with its community and industry to develop an extremely large optical/infrared telescope. ESO's Extremely Large Telescope, or ELT for short, is a re…
PSF nowcast using PASSATA simulations -- Towards a PSF forecast
A. Turchi, G. Agapito, E. Masciadri +8
Characterizing the PSF of adaptive optics instruments is of paramount importance both for instrument design and observation planning/optimization. Simulation software, such as PASS…
Performance characterization and near-realtime monitoring of MUSE adaptive optics modes at Paranal
T. Wevers, F. J. Selman, A. Reyes +13
The Multi Unit Spectroscopic Explorer (MUSE) is an integral field spectrograph on the Very Large Telescope Unit Telescope 4, capable of laser guide star assisted and tomographic ad…
Towards virtual access of adaptive optics telemetry data
Tiago Gomes, Carlos Correia, Lisa Bardou +8
Large amounts of Adaptive-Optics (AO) control loop data and telemetry are currently inaccessible to end-users. Broadening access to those data has the potential to change the AO la…
Current status of PAPYRUS : the pyramid based adaptive optics system at LAM/OHP
Muslimov E., Levraud N., Chambouleyron V. +23
The Provence Adaptive optics Pyramid Run System (PAPYRUS) is a pyramid-based Adaptive Optics (AO) system that will be installed at the Coude focus of the 1.52m telescope (T152) at…
TIPTOP: a new tool to efficiently predict your favorite AO PSF
Benoit Neichel, Olivier Beltramo-Martin, Cedric Plantet +7
The Adaptive Optics (AO) performance significantly depends on the available Natural Guide Stars (NGSs) and a wide range of atmospheric conditions (seeing, Cn2, windspeed,...). In o…
Operational forecast of the PSF figures of merit
A. Turchi, G. Agapito, E. Masciadri +6
The optimization and scheduling of scientific observations done with instrumentation supported by adaptive optics could greatly benefit from the forecast of PSF figures of merit (F…
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…
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…
Pushing Point spread function reconstruction to the next level. Application to SPHERE/ZIMPOL
Olivier Beltramo-Martin, Antonino Marasco, Thierry Fusco +4
Point spread function (PSF) reconstruction (PSF-R) is a well established technique to determine reliably and accurately the PSF from Adaptive Optics (AO) control loop data. We have…
Successful application of PSF-R techniques to the case of the globular cluster NGC6121 (M4)
D. Massari, A. Marasco, O. Beltramo-Martin +4
Precise photometric and astrometric measurements on astronomical images require an accurate knowledge of the Point Spread Function (PSF). When the PSF cannot be modelled directly f…
Physics-based model of the adaptive-optics corrected point-spread-function
Romain Fétick, Thierry Fusco, Benoit Neichel +8
Context. Adaptive optics (AO) systems greatly increase the resolution of large telescopes, but produce complex point spread function (PSF) shapes, varying in time and across the fi…
PRIME: Psf Reconstruction and Identification for Multiple sources characterization Enhancement. Application to Keck NIRC2 imager
O. Beltramo-Martin, C. M. Correia, S. Ragland +4
In order to enhance accuracy of astrophysical estimates obtained on Adaptive-optics (AO) images, such as photometry and astrometry, we investigate a new concept to constrain the Po…
Optimizing the accuracy and efficiency of optical turbulence profiling using adaptive optics telemetry for extremely large telescopes
Douglas J Laidlaw, James Osborn, Timothy J Morris +8
Advanced adaptive optics (AO) instruments on ground-based telescopes require accurate knowledge of the atmospheric turbulence strength as a function of altitude. This information a…
PEPITO: atmospheric Profiling from short-Exposure focalPlane Images in seeing-limiTed mOde
Olivier Beltramo-Martin, Nazim A. Bharmal, Carlos M. Correia
Atmospheric profiling is a requirement for controlling wide-field Adaptive Optics (AO) instruments, analyzing the AO performance with respect to the observing conditions and predic…
Focal plane profiling based on single conjugate adaptive optics compensated images
O. Beltramo-Martin, C. M. Correia, B. Neichel +1
Knowledge of the atmospheric turbulence in the telescope line-of-sight is crucial for wide-field observations assisted by adaptive optics (AO), for which the Point Spread Function…
Off-axis point spread function characterisation in laser-guide star adaptive optics systems
O. Beltramo-Martin, C. M. Correia, E. Mieda +5
Adaptive optics (AO) restore the angular resolution of ground-based telescopes, but at the cost of delivering a time- and space-varying point spread function (PSF) with a complex s…