MAVIS conceptual design

Rigaut, François; McDermid, Richard M.; Cresci, G.; Viotto, Valentina; Ellis, Simon; Brodrick, David; Agapito, Guido; Fusco, Thierry; Neichel, Benoît; Haguenauer, Pierre; Plantet, Cédric; Salasnich, Bernardo; Aliverti, Matteo; Antoniucci, S.; Balestra, Andrea; Baruffolo, A.; Beltramo-Martin, Olivier; Bergomi, Maria; Blanco, Andrea; Bonaglia, Marco; Bono, G.; Busoni, Lorenzo; Carolo, Elena; Chinellato, Simonetta; Content, Robert; Cranney, Jesse; Silva, Gayandhi De; Esposito, Simone; Fantinel, D.; Farinato, Jacopo; Haynes, Dionne; Horton, Anthony; Gausachs, Gaston; Gilbert, James; Gratadour, Damien; Greggio, Davide; Gullieuszik, Marco; Korkiakoski, Visa; Magrin, Demetrio; Magrini, L.; Marafatto, Luca; McGregor, Helen; Mendel, J. Trevor; Monty, Stephanie; Pedichini, Fernando; Pinna, Enrico; Portaluri, Elisa; Santhakumari, Kalyan Kumar Radhakrishnan; Ragazzoni, Roberto; Robertson, David J.; Schwab, Christian; Ströbele, Stefan; Thorn, Elliott; Vaccarella, Annino; Vassallo, Daniele; Waller, Lew; Zamkotsian, Frédéric; Zanutta, Alesso; Zhang, Hao

doi:10.1117/12.2561886

Cited by 15 publications

(6 citation statements)

References 8 publications

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“…If applied to the nighttime dataset, Equation (6) gives EE core,OBS,uncorrected = 0.36, in contrast with the observed value of EE core,OBS = 0.43. The shape factor in this case results:…”

Section: Discussionmentioning

confidence: 80%

“…In many scientific applications exploiting diffraction limit AO capabilities, [1][2][3][4][5][6] a serious challenge experienced during data analysis is the precise knowledge of the two-dimensional point spread function (PSF): approaching the diffraction limit of ground-based cornerstone facilities is not an easy task. A severe drawback in this sense is that the PSF of an AO system is a very complex entity, which has a high number of degrees of freedom involved, varies spatially in the field of view (FOV), is not constant in time, and behaves differently at each wavelength.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Point spread function reconstruction for SOUL + LUCI LBT data

Simioni

Arcidiacono

Wagner

et al. 2022

J. Astron. Telesc. Instrum. Syst.

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Here, we present the status of an ongoing project aimed at developing a point spread function (PSF) reconstruction software for adaptive optics (AO) observations. In particular, we test for the first time the implementation of pyramid wave-front sensor data on our algorithms. As a first step in assessing its reliability, we applied the software to bright, on-axis, point-like sources using two independent sets of observations, acquired with the single-conjugated AO upgrade for the Large Binocular Telescope. Using only telemetry data, we reconstructed the PSF by carefully calibrating the instrument response. The accuracy of the results has been first evaluated using the classical metric: specifically, the reconstructed PSFs differ from the observed ones by <2% in Strehl ratio and 4.5% in full-width at half maximum. Moreover, the recovered encircled energy associated with the PSF core is accurate at 4% level in the worst case. The accuracy of the reconstructed PSFs has then been evaluated by considering an idealized scientific test-case consisting in the measurements of the morphological parameters of a compact galaxy. In the future, our project will include the analysis of anisoplanatism, low signal-to-noise ratio regimes, and the application to multi-conjugated AO observations.

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“…If applied to the nighttime dataset, Equation (6) gives EE core,OBS,uncorrected = 0.36, in contrast with the observed value of EE core,OBS = 0.43. The shape factor in this case results:…”

Section: Discussionmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Point spread function reconstruction for SOUL + LUCI LBT data

Simioni

Arcidiacono

Wagner

et al. 2022

J. Astron. Telesc. Instrum. Syst.

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“…It would thus be preferable for an MCAO system to get rid of the central obscuration of the technical FoV as much as possible, for example, by sensing the NGSs at a wavelength not used by the science path. Though this solution might put difficult constraints on the design, it can be straightforwardly applied in a system such as MAVIS (MCAO-assisted visible imager and spectrograph), 27 which will do science in the visible.…”

Section: Discussionmentioning

confidence: 99%

Sky coverage assessment for the European ELT: a joint evaluation for MAORY/MICADO and HARMONI

Plantet

Neichel

Agapito

et al. 2022

J. Astron. Telesc. Instrum. Syst.

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The instruments developed for the upcoming Extremely Large Telescopes (ELTs) will need efficient adaptive optics (AO) systems to correct the effects of the atmospheric turbulence and allow imaging at the highest angular resolution. One of the most important requirements for ELT AO-assisted instruments will be to deliver diffraction-limited images in a significant part of the sky. For that, the instruments will be equipped with laser guide stars (LGSs) providing most of the information required by AO instruments. But even with LGSs, AO systems still require the use of natural guide stars (NGSs) to compensate for image motion (jitter) and some low order aberrations. These NGSs are eventually limiting the fraction of the sky that can be achieved by AO systems, the so-called sky coverage (SC). We first present the SC assessment methods used for high angular resolution monolithic optical and near-infrared integral field spectrograph (HARMONI) and multiconjugate adaptive optics relay/multi-AO imaging camera for deep observations (MAORY/MICADO), that are both instruments for the ELT of the European Southern Observatory (ESO). They are based on a semianalytical description of the main contributors in the AO error budget, allowing for a fast estimation of the residual jitter. As such, these methods are well suited for statistical estimation of the SC on multiple science fields and/or to efficiently explore the system parameter space. We then compute the SC of the two instruments in cosmological fields from the cosmic assembly near-IR deep extragalactic legacy survey catalog. The goal is to provide an insight on the possibilities given by two different types of tomographic AO systems, i.e., laser tomography AO with HARMONI and multiconjugate AO with MAORY, on the same telescope. In particular, we show that HARMONI and MAORY/ MICADO are complementary, meaning that the overall SC of ESO's ELT is much improved for applications common to both systems.

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“…This configuration was chosen not only considering simulations results coming from the work reported here, but also considering all the aspects of the design of MAVIS. 1,4 In Sec. 5 some of these parameters were changed to explore all the selected different configurations.…”

Section: Baseline Configurationmentioning

confidence: 99%

“…Numerical simulations have been used to support system design in selecting the baseline configuration of the AO module of MAVIS 1 with main focus on the fulfilment of the Top Level Requirements (TLRs). These requirements demand that the system reaches 10% SR in V band on a FoV of 30arcsec diameter (15% goal) in standard atmospheric conditions at Paranal with bright Natural Guide Stars (m J =8) and provides a sky coverage larger than 50% in the south galactic pole guaranteeing an ensquared energy of at least 15% on 50mas side in V band (in the same standard atmospheric conditions).…”

Section: Introductionmentioning

confidence: 99%

MAVIS: system modelling and performance prediction

Agapito,

Vassallo,

Plantet

et al. 2020

Preprint

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The MCAO Assisted Visible Imager and Spectrograph (MAVIS) Adaptive Optics Module has very demanding goals to support science in the optical: providing 15% SR in V band on a large FoV of 30arcsec diameter in standard atmospheric conditions at Paranal. It will be able to work in closed loop on up to three natural guide stars down to H=19, providing a sky coverage larger than 50% in the south galactic pole. Such goals and the exploration of a large MCAO system parameters space have required a combination of analytical and endto-end simulations to assess performance, sky coverage and drive the design. In this work we report baseline performance, statistical sky coverage and parameters sensitivity analysis done in the phase-A instrument study.

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MAVIS conceptual design

Cited by 15 publications

References 8 publications

Point spread function reconstruction for SOUL + LUCI LBT data

Point spread function reconstruction for SOUL + LUCI LBT data

Sky coverage assessment for the European ELT: a joint evaluation for MAORY/MICADO and HARMONI

MAVIS: system modelling and performance prediction

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