R
Roberto Ragazzoni
Researcher at INAF
Publications - 471
Citations - 10303
Roberto Ragazzoni is an academic researcher from INAF. The author has contributed to research in topics: Adaptive optics & Wavefront. The author has an hindex of 35, co-authored 420 publications receiving 8381 citations. Previous affiliations of Roberto Ragazzoni include Max Planck Society & University of Padua.
Papers
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Journal ArticleDOI
Radio plasma fringes as guide stars: Tracking the global tilt
TL;DR: In this article, the authors present a novel technique to alleviate the problem of the global tilt in artificial guide stars for adaptive optics based on the registration of trails of radio-excited plasma spots caused by the atmospheric tilt.
Posted Content
The Elongated Structure of the Hercules dSph from Deep LBT Imaging
Matthew G. Coleman,Jelte T. A. de Jong,Nicolas F. Martin,Hans-Walter Rix,David J. Sand,Eric F. Bell,Richard W. Pogge,D. J. Thompson,Hans Hippelein,E. Giallongo,Roberto Ragazzoni,A. DiPaola,Jacopo Farinato,Riccardo Smareglia,Vincenzo Testa,Jill Bechtold,John M. Hill,Peter M. Garnavich,Richard F. Green +18 more
TL;DR: In this article, a deep, wide-field photometric survey of the newly-discovered Hercules dwarf spheroidal galaxy is presented, based on data from the Large Binocular Telescope.
Journal ArticleDOI
Transit detection of the long-period volatile-rich super-Earth ν 2 Lupi d with CHEOPS
L. Delrez,L. Delrez,David Ehrenreich,Yann Alibert,Andrea Bonfanti,L. Borsato,Luca Fossati,M. J. Hooton,Sergio Hoyer,Francisco J. Pozuelos,S. Salmon,S. Salmon,S. Sulis,Thomas G. Wilson,Vardan Adibekyan,Vincent Bourrier,Alexis Brandeker,Sébastien Charnoz,A. Deline,Pascal Guterman,J. Haldemann,Nathan Hara,Mahmoudreza Oshagh,Mahmoudreza Oshagh,S. G. Sousa,Valérie Van Grootel,Roi Alonso,Roi Alonso,Guillem Anglada-Escudé,T. Bárczy,David Barrado,S. C. C. Barros,Wolfgang Baumjohann,M. Beck,A. Bekkelien,Willy Benz,Nicolas Billot,Xavier Bonfils,Christopher Broeg,Juan Cabrera,Andrew Collier Cameron,Melvyn B. Davies,Magali Deleuil,J.-B. Delisle,Olivier Demangeon,Brice-Olivier Demory,Anders Erikson,Andrea Fortier,Malcolm Fridlund,Malcolm Fridlund,D. Futyan,Davide Gandolfi,Antonio García Muñoz,Michaël Gillon,Manuel Guedel,Kevin Heng,László L. Kiss,László L. Kiss,László L. Kiss,Jacques Laskar,Alain Lecavelier des Etangs,Monika Lendl,Monika Lendl,Christophe Lovis,Pierre F. L. Maxted,Valerio Nascimbeni,Göran Olofsson,H. P. Osborn,H. P. Osborn,Isabella Pagano,Enric Palle,Enric Palle,Giampaolo Piotto,Giampaolo Piotto,Don Pollacco,Didier Queloz,Didier Queloz,Heike Rauer,Heike Rauer,Heike Rauer,Roberto Ragazzoni,Ignasi Ribas,Nuno C. Santos,Gaetano Scandariato,Damien Ségransan,A. E. Simon,Alexis M. S. Smith,M. Steller,Gyula M. Szabó,Nicolas Thomas,Stéphane Udry,Nicholas A. Walton +91 more
TL;DR: In this paper, the authors report that the outer planet d is also transiting, and measure its radius and mass to be 2.56 ± 0.94 M⊕, respectively.
Proceedings ArticleDOI
The active optics system of the VST: concepts and results
Pietro Schipani,Demetrio Magrin,Lothar Noethe,Carmelo Arcidiacono,Javier Argomedo,Massimo Dall'Ora,Sergio D'Orsi,Jacopo Farinato,Laurent Marty,Roberto Ragazzoni,Gabriele Umbriaco +10 more
TL;DR: The VLT Survey Telescope (VST) active optics as mentioned in this paper adopts a positioning system for the secondary mirror and a Shack-Hartmann wavefront sensor to support and modify the shape of the 2.6m primary mirror.
Journal ArticleDOI
Sodium beacon tip-tilt determination with rayleigh-aided auxiliary telescope technique
TL;DR: In this article, the usefulness of tracking the Rayleigh portion of a mesospheric sodium laser guide star as reference for absolute tip-tilt recovery in the frame of the auxiliary telescopes technique is shown.