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27 results on '"Rodeghiero, Gabriele"'

4. Electronics and Detectors for the Stellar Intensity Interferometer of the ASTRI Mini-Array Telescopes.

Author

Bonanno, Giovanni, Zampieri, Luca, Naletto, Giampiero, Paoletti, Lorenzo, Romeo, Giuseppe, Bruno, Pietro, Grillo, Alessandro, Occhipinti, Gianfranco, Timpanaro, Maria Cristina, Gargano, Carmelo, Fiori, Michele, Rodeghiero, Gabriele, Pareschi, Giovanni, Scuderi, Salvatore, and Tosti, Gino

Subjects
FOCAL planes, DETECTORS, INTERFEROMETRY, ASTROPHYSICS
Abstract

The ASTRI Mini-Array is an international collaboration led by the Italian National Institute for Astrophysics (INAF) that will operate nine telescopes to perform Cherenkov and optical stellar intensity interferometry (SII) observations. At the focal plane of these telescopes, we are planning to install a stellar intensity interferometry instrument. Here we present the selected design, based on Silicon Photomultiplier (SiPM) detectors matching the telescope point spread function together with dedicated front-end electronics. [ABSTRACT FROM AUTHOR]

Published
2023
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7. MAORY System Overview

Author

CILIEGI, Paolo, AGAPITO, Guido, ALIVERTI, Matteo, ARCIDIACONO, CARMELO, BARUFFOLO, Andrea, BONAGLIA, Marco, BUSONI, Lorenzo, CASCONE, Enrico, DE CAPRIO, VINCENZO, Devaney, N, DI GIAMMATTEO, UGO, DI RICO, Gianluca, ESPOSITO, Simone, FARINATO, JACOPO, Feautrier, P, FOPPIANI, Italo, GIRO, Enrico, Goncharov, A., Hubert, Z, MAGRINI, Laura, Oberti, S., RAGAZZONI, Roberto, REDAELLI, Edoardo Maria Alberto, RIVA, Marco, RODEGHIERO, GABRIELE, SALASNICH, Bernardo, XOMPERO, Marco, ITA, and CILIEGI PAOLO

Abstract

Documento consegnato ad ESO nell'ambito della Preliminary Design Review dello strumento MAORY e sottoposto a review da parte del Board di ESO. This document provides a general overview of the MAORY system with a description of the general architecture and the main characteristics of all sub-systems. A short description of the performance expected is also provided. A more detailed description of the MAORY design is available in the document MAORY Design Report while for all the AO related aspects of MAORY the reader is referred to the MAORY AO Design and Analysis Report. This document can be viewed, together with the Executive Summary and the MAORY System Design Report, as an introductory reading to understand the MAORY instrument

Published
2021

8. Preliminary design of the MICADO calibration unit

Author

Rodeghiero, Gabriele, Pott, Jörg-Uwe, and Müller, Friedrich

Subjects
flat-fielding, astrometry, calibration unit
Abstract

MICADO is the Multi-AO Imaging Camera for Deep Observations, which aims to be the first light instrument of E-ELT. Thanks to its robust design with fixed mirrors and a cryogenic environment, MICADO will provide unprecedented astrometric capabilities and image stability in the range 0.8-2.4 μm. The operation of the instrument coupled with a SCAO unit provides diffraction-limited images over a field of view of 27” that will enlarge to 53” after the integration of the Multi-conjugate Adaptive Optics RelaY, MAORY. This work presents some preliminary possible concepts for the MICADO calibration unit, currently under development at MPIA. This subsystem shall provide standard flat-fielding and spectral calibration plus an astrometric calibration performed with an internal calibration mask to measure and compensate instrument distortions, discontinuities between the detectors and telescope instabilities. The goal of the instrument is to deliver an astrometric accuracy of ~50 μas over the whole field of view.

Published
2015
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10. The ASTRI SST-2M prototype for the Cherenkov Telescope Array: prototype technologies goals and strategies for the future SSTGround-based and Airborne Telescopes V

Author

Stepp, Larry M., Roberto, Gilmozzi, Hall, Helen J., Gianpietro, Marchiori, Andrea, Busatta, Stefano, Giacomel, Ivan, Folla, Marco, Valsecchi, Rodolfo, Canestrari, Giacomo, Bonnoli, Enrico, Cascone, Paolo, Conconi, Mauro, Fiorini, Enrico, Giro, Nicola La Palombara, Giovanni, Pareschi, Luca, Perri, Rodeghiero, Gabriele, Giorgia, Sironi, Luca, Stringhetti, Giorgio, Toso, Gino, Tosti, and Carlo, Pellicciari

Published
2014

11. The ASTRI SST-2M prototype for the Cherenkov Telescope Array: manufacturing of the structure and the mirrorsGround-based and Airborne Telescopes V

Author

Stepp, Larry M., Roberto, Gilmozzi, Hall, Helen J., Rodolfo, Canestrari, Giacomo, Bonnoli, Enrico, Cascone, Paolo, Conconi, Giuseppe, Crimi, Mauro, Fiorini, Enrico, Giro, Nicola La Palombara, Giovanni, Pareschi, Luca, Perri, Rodeghiero, Gabriele, Giorgia, Sironi, Luca, Stringhetti, Giorgio, Toso, Gino, Tosti, and Carlo, Pelliciari

Published
2014

14. Tests characterization and alignment for the optics of the ASTRI SST-2M telescope prototype for the Cherenkov Telescope ArrayAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation

Author

Ramón, Navarro, Cunningham, Colin R., Barto, Allison A., Enrico, Giro, Rodeghiero, Gabriele, Giacomo, Bonnoli, Rodolfo, Canestrari, Paolo, Conconi, Mauro, Fiorini, Daniela, Fantinel, Daniele, Gardiol, Luigi, Lessio, Nicola La Palombara, Giovanni, Pareschi, Luca, Perri, Danilo, Selvestrel, Giorgia, Sironi, Luca, Stringhetti, Giorgio, Toso, Gino, Tosti, Antonio, Volpicelli, and Gerardo, Capobianco

Published
2014

16. The ASTRI SST-2M prototype for the next generation of Cherenkov telescopes: structure and mirrorsOptics for EUV, X-Ray, and Gamma-Ray Astronomy VI

Author

O'Dell, Stephen L., Rodolfo, Canestrari, Enrico, Cascone, Paolo, Conconi, Mauro, Fiorini, Enrico, Giro, Nicola La Palombara, Luigi, Lessio, Giovanni, Pareschi, Rodeghiero, Gabriele, Giorgia, Sironi, Luca, Stringhetti, Giorgio, Toso, Gino, Tosti, Francesco, Martelli, Giancarlo, Parodi, Pierfrancesco, Rossettini, and Raffaele, Tomelleri

Published
2013

17. Spectropolarimetry of Galactic stars with anomalous extinction sightlines.

Author

Cikota, Aleksandar, Thiem Hoang, Taubenberger, Stefan, Patat, Ferdinando, Mazzei, Paola, Cox, Nick L. J., Zelaya, Paula, Cikota, Stefan, Tomasella, Lina, Benetti, Stefano, and Rodeghiero, Gabriele

Subjects
SUPERNOVAE, ASTROPHYSICAL spectropolarimetry, LINEAR polarization, MILKY Way, STARS
Abstract

Highly reddened type Ia supernovae (SNe Ia) with low total-to-selective visual extinction ratio values, RV, also show peculiar linear polarization wavelength dependencies with peak polarizations at short wavelengths (λmax ≲ 0.4 μm). It is not clear why sightlines to SNe Ia display such different continuum polarization profiles from interstellar sightlines in the Milky Way with similar RV values. We investigate polarization profiles of a sample of Galactic stars with low RV values, along anomalous extinction sightlines, with the aim to find similarities to the polarization profiles that we observe in SN Ia sightlines. We undertook spectropolarimetry of 14 stars, used archival data for 3 additional stars, and ran dust extinction and polarization simulations (by adopting the picket-fence alignment model) to infer a simple dust model (size distribution, alignment) that can reproduce the observed extinction and polarization curves. Our sample of Galactic stars with low RV values and anomalous extinction sightlines displays normal polarization profiles with an average λmax ~ 0.53 μm, and is consistent within 3σ to a larger coherent sample of Galactic stars from the literature. Despite the low RV values of dust toward the stars in our sample, the polarization curves do not show any similarity to the continuum polarization curves observed toward SNe Ia with low RV values. There is a correlation between the best-fit Serkowski parameters K and λmax, but we did not find any significant correlation between RV and λmax. Our simulations show that the K–λmax relationship is an intrinsic property of polarization. Furthermore, we have shown that in order to reproduce polarization curves with normal λmax and low RV values, a population of large (a ≥ 0.1μm) interstellar silicate grains must be contained in the dust composition. [ABSTRACT FROM AUTHOR]

Published
2018
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19. The MAORY/MORFEO MAIT strategy in Europe.

Author

Farinato, Jacopo, Marafatto, Luca, Rodeghiero, Gabriele, Riva, Marco, Redaelli, Edoardo, Magrin, Demetrio, Munari, Matteo, Pariani, Giorgio, Cianniello, Vincenzo, De Caprio, Vincenzo, Carolo, Elena, Aliverti, Matteo, Arcidiacono, Carmelo, Baruffolo, Andrea, Bergomi, Maria, Bonaglia, Marco, Busoni, Lorenzo, Cascone, Enrico, Ciliegi, Paolo, and Chinellato, Simonetta

Published
2022
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20. MAORY/MORFEO at ELT: calibration unit overview.

Author

Di Rico, Gianluca, Di Antonio, Ivan, Rodeghiero, Gabriele, Valentini, Angelo, Dolci, Mauro, Goncharov, Alexander, Devaney, Nicholas, Busoni, Lorenzo, Oberti, Sylvain, Riva, Marco, Farinato, Jacopo, Cascone, Enrico, Chinellato, Simonetta, Cianniello, Vincenzo, D'Auria, Domenico, De Caprio, Vincenzo, Eredia, Christian, Giro, Enrico, Magrin, Demetrio, and Portaluri, Elisa

Published
2022
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21. MAORY/MORFEO at ELT: optomechanical preliminary design.

Author

Redaelli, Edoardo Maria Alberto, Aliverti, Matteo, Riva, Marco, Pariani, Giorgio, De Caprio, Vincenzo, Cianniello, Vincenzo, Eredia, Christian, Cascone, Enrico, Di Antonio, Ivan, Di Rico, Gianluca, Dolci, Mauro, Rodeghiero, Gabriele, Magrin, Demetrio, Busoni, Lorenzo, Foppiani, Italo, Ciliegi, Paolo, and di Giammatteo, Ugo

Published
2022
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24. Mechanical design overview for the main structure of MAORY/MORFEO.

Author

De Caprio, Vincenzo, Cianniello, Vincenzo, Eredia, Christian, D'Auria, Domenico, Cascone, Enrico, Redaelli, Edoardo Maria Alberto, Aliverti, Matteo, Pariani, Giorgio, Riva, Marco, Farinato, Jacopo, Magrin, Demetrio, Marafatto, Luca, Rodeghiero, Gabriele, Chinellato, Simonetta, Munari, Matteo, Di Antonio, Ivan, Di Rico, Gianluca, and Ciliegi, Paolo

Published
2022
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25. A stellar intensity interferometry instrument for the ASTRI Mini-Array telescopes.

Author

Zampieri, Luca, Bonanno, Giovanni, Bruno, Pietro, Gargano, Carmelo, Lessio, Luigi, Naletto, Giampiero, Paoletti, Lorenzo, Rodeghiero, Gabriele, Romeo, Giuseppe, Bulgarelli, Andrea, Conforti, Vito, Fiori, Michele, Gallozzi, Stefano, Gianotti, Fulvio, Grillo, Alessandro, Landoni, Marco, Lombardi, Saverio, Lucarelli, Fabrizio, Morselli, Aldo, and Occhipinti, Giovanni

Published
2022
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26. Performance and limitations of using ELT and MCAO for 50 μas astrometry.

Author

Rodeghiero, Gabriele, Arcidiacono, Carmelo, Pott, Jörg-Uwe, Perera, Saavidra, Pariani, Giorgio, Magrin, Demetrio, Riechert, Hannes, Glück, Martin, Gendron, Eric, Massari, Davide, Sauter, Jonas, Fabricius, Maximilian, Häberle, Maximilian, Meßlinger, Sebastian, Davies, Ric, Ciliegi, Paolo, Lombini, Matteo, and Schreiber, Laura

Published
2021
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27. Optical Design Document

Author

CANESTRARI, Rodolfo, ITA, Rodeghiero, Gabriele, Fiorini, Mauro, Stringhetti, Luca, and Giro, Enrico

Published
2012

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