153 citations · 817 across the 73 of their papers we have counts for
8 papers · 2 filters
Alignment and preliminary outcomes of an ELT-size instrument to a very large telescope: LINC-NIRVANA at LBT
M. Bergomi, L. Marafatto, V. Viotto +14
LINC-NIRVANA (LN) is a high resolution, near infrared imager that uses a multiple field-of-view, layer-oriented, multi-conjugate AO system, consisting of four multi-pyramid wavefro…
GMCAO simulation tool development
Valentina Viotto, Elisa Portaluri, Roberto Ragazzoni +6
Global MCAO aims to exploit a very wide technical field of view to find AO-suitable NGSs, with the goal to increase the overall sky coverage. The concept foresees the use of numeri…
The MICADO first light imager for ELT: its astrometric performance
J. -U. Pott, G. Rodeghiero, H. Riechert +4
We report on our ongoing efforts to ensure that the MICADO NIR imager reaches differential absolute (often abbreviated: relative) astrometric performance limited by the SNR of typi…
The calibration procedure of the LINC-NIRVANA ground and high layer WFS
Carmelo Arcidiacono, Kalyan Kumar Radhakrishnan Santhakumari, Valentina Viotto +12
LINC--NIRVANA (LN) is an MCAO module currently mounted on the Rear Bent Gregorian focus of the Large Binocular Telescope (LBT). It mounts a camera originally designed to realize th…
Approximate nonnegative matrix factorization algorithm for the analysis of angular differential imaging data
Carmelo Arcidiacono, Valeria Simoncini
The angular differential imaging (ADI) is used to improve contrast in high resolution astronomical imaging. An example is the direct imaging of exoplanet in camera fed by Extreme A…
Shack-Hartmann wavefront sensor sensitivity loss factor estimation in partial correction regime
Guido Agapito, Carmelo Arcidiacono, Simone Esposito
In typical adaptive optics applications, the atmospheric residual turbulence affects the wavefront sensor response decreasing its sensitivity. On the other hand, wavefront sensors…
The impact of ELT distortions and instabilities on future astrometric observations
Gabriele Rodeghiero, Jörg-Uwe Pott, Carmelo Arcidiacono +4
The paper discusses an assessment study about the impact of the distortions on the astrometric observations with the Extremely Large Telescope originated from the optics positionin…
Prototype of a laser guide star wavefront sensor for the Extremely Large Telescope
M. Patti, M. Lombini, L. Schreiber +5
The new class of large telescopes, as the future ELT, are designed to work with Laser Guide Star (LGS) tuned to a resonance of atmosphere sodium atoms. This wavefront sensing techn…