Zobrazeno 1 - 10
of 149
pro vyhledávání: '"Julian C. Christou"'
Autor:
Jack D. Drummond, Julian C. Christou, Clark R. Chapman, Miles Buckman, Benoit Carry, Al Conrad, William J. Merline, William M. Grundy, William M. Owen, Christophe Dumas, B. Enke, Daniel D. Durda, Peter Tamblyn, Odell Reynolds
Publikováno v:
Icarus
Icarus, Elsevier, 2021, 358, pp.114275. ⟨10.1016/j.icarus.2020.114275⟩
Icarus, Elsevier, 2021, 358, pp.114275. ⟨10.1016/j.icarus.2020.114275⟩
A definitive orbit is derived for asteroid (317) Roxane’s satellite Olympias [S/2009 (317)1] by combining the 2009 discovery images from Gemini North ( Merline et al. 2009 ) with images from Keck and the VLT obtained in 2012, as well as images from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5335bbea1e8de44e5f8bf6f6297a0cc3
https://hal.archives-ouvertes.fr/hal-03472619
https://hal.archives-ouvertes.fr/hal-03472619
Publikováno v:
Optics Express
Optics Express, Optical Society of America-OSA Publishing, 2021, 29 (8), pp.11533-11537. ⟨10.1364/OE.418282⟩
Optics Express, Optical Society of America-OSA Publishing, 2021, 29 (8), pp.11533-11537. ⟨10.1364/OE.418282⟩
This feature issue of Optics Express follows the 2020 Imaging and Applied Optics Congress and comprises of articles on the development and use of adaptive optics across the broad range of domains in which the technique has been applied - including at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80f9a6e47798b5b8e07fcf504fc1d9b6
https://hal-iogs.archives-ouvertes.fr/hal-03376293
https://hal-iogs.archives-ouvertes.fr/hal-03376293
Autor:
Xianyu Zhang, Julian C. Christou, Enrico Pinna, Alessandaro Cavallaro, Douglas L. Miller, Gregory E. Taylor, Gustavo Rahmer, Christian Veillet, Laura Funk, Steve Ertel, Guido Brusa, Shane Walsh, Simone Esposito, Al Conrad
Publikováno v:
Adaptive Optics Systems VII.
The Facility AO systems at the LBT are based around the two Adaptive Secondary Mirrors (ASM) and the Pyramid Wavefront Sensors (PWFS), the latter being recently upgraded as part of the SOUL project in order to provide improved image quality performan
Autor:
Roberto Biasi, Martin Glück, Julian C. Christou, Jörg-Uwe Pott, Xianyu Zhang, Guido Brusa, Mario Andrighettoni, Moritz Straub, Al Conrad, Michael Lefebvre
Publikováno v:
Adaptive Optics Systems VII.
With the exception of the two prime focus cameras, all the instruments on the Large Binocular Telescope (LBT) use the two advanced 672-voice-coil-actuators adaptive secondary mirrors (ASMs). Based on 10 years of ASMs operation experience, and taking
Adaptive secondary mirrors performance and reliability improvements at the Large Binocular Telescope
Autor:
Julian C. Christou, Guido Brusa, Marco Xompero, Matthieu Bec, Douglas L. Miller, Armando Riccardi, Xianyu Zhang
Publikováno v:
Adaptive Optics Systems VII.
The adaptive secondary mirrors (ASMs), being an integral part of the telescope optical train, have huge advantages over other wave-front correctors. At the same time, because of this specific characteristic, high performance and high reliability is r
Autor:
Gregory E. Taylor, Dave Thompson, Julian C. Christou, Douglas L. Miller, Barry Rothberg, Christian Veillet, Rigel T. Gatto
Publikováno v:
Adaptive Optics Systems VII.
The Adaptive Optics (AO) system at the Large Binocular Telescope (LBT) in conjunction with the f/30 camera on the LBT Utility Camera in the Infrared instruments (LUCI) can achieve diffraction limited image quality over a 30" × 30" field of view (FOV
Publikováno v:
Adaptive Optics Systems VII.
Wavefront sensing (WFS) in the context of Adaptive Optics requires intensive computational processing for the reconstruction of the wavefront. In this work, an artificial Neural Network will be trained based using real Pyramid WFS data in order to es
Autor:
Shane Walsh, Barry Rothberg, Julian C. Christou, Doug Miller, Fabio Rossi, Enrico Pinna, Steve Ertel, Guido Agapito, Cedric Plantet
Publikováno v:
Scopus-Elsevier
We present an overview of the AO systems at the LBT concentrating on the unique capability of two adaptive secondary mirrors and pyramid wavefront sensing. These permit AO compensation down to 16th magnitude guide stars enhancing field coverage as we
Autor:
William J. Merline, Peter Tamblyn, Katherine de Kleer, Clark R. Chapman, Julian C. Christou, Christophe Dumas, B. Enke, Vishnu Reddy, Benoit Carry, Jack D. Drummond, Al Conrad, Imke de Pater
Publikováno v:
Icarus
Icarus, Elsevier, 2018, 305, pp.174-185. ⟨10.1016/j.icarus.2018.01.010⟩
Icarus, Elsevier, 2018, 305, pp.174-185. ⟨10.1016/j.icarus.2018.01.010⟩
We analyze a comprehensive set of our adaptive optics (AO) images taken at the 10 m W. M. Keck telescope and the 8 m Gemini telescope to derive values for the size, shape, and rotational pole of asteroid (16) Psyche. Our fit of a large number of AO i
Autor:
S. Antoniucci, G. Li Causi, M. Mattioli, Amali Vaz, P. M. Hinz, R. Piazzesi, Marco Stangalini, Fernando Pedichini, Enrico Pinna, Alfio Puglisi, Julian C. Christou, Vincenzo Testa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6e37f63d91da5b77833d070668f6441
http://hdl.handle.net/20.500.12386/30484
http://hdl.handle.net/20.500.12386/30484