Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Steffan Lewis"'
Autor:
Edoardo Maria Alberto Redaelli, Carlo Zanoni, Sebastian Schmid, Paul Jolley, Martin Brinkmann, Ulrich Lampater, Steffan Lewis
Publikováno v:
Ground-based and Airborne Telescopes IX.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac3bcaa35ad22b7b3d1bac028eadcf11
https://doi.org/10.1117/12.2629187
https://doi.org/10.1117/12.2629187
Publikováno v:
Ground-based and Airborne Telescopes IX.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::700c29822a731680c9ac9461e16e1d2c
https://doi.org/10.1117/12.2629221
https://doi.org/10.1117/12.2629221
Autor:
Onyebuchi E. Okosieme, Lakdasa Premawardhana, Medha Agrawal, Peter N. Taylor, Steffan Lewis, Colin M. Dayan
Objectives\ud\udThe risk of congenital anomalies following in utero exposure to thionamide antithyroid drugs (ATDs) is unresolved. Observational studies are contradictory and existing meta-analyses predate and preclude more recent studies. We underto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10b1cd9d53a315455f52969245ca927b
Publikováno v:
Journal of Astronomical Telescopes, Instruments, and Systems. 8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f552b4b17e8616e0e656e5a60311e597
https://doi.org/10.1117/1.jatis.8.2.021504
https://doi.org/10.1117/1.jatis.8.2.021504
Autor:
Enzo Brunetto, Stephane Guisard, Enrico Marchetti, Thomas Pfrommer, Christoph Frank, U. Lampater, Paul Jolley, P. La Penna, Johan Kosmalski, Steffan Lewis, Peter Hammersley, I. Guidolin, A. Förster, P. Zuluaga, Ronald Holzlöhner
Publikováno v:
Ground-based and Airborne Telescopes VII.
The Prefocal Station (PFS) is the last opto-mechanical unit before the telescope focal plane in the Extremely Large Telescope (ELT) optical train. The PFS distributes the telescope optical beam to the Nasmyth and Coude instrument focal stations and i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff1cfa7fe84cb417cde9453ef04b130c
https://doi.org/10.1117/12.2313535
https://doi.org/10.1117/12.2313535
Autor:
Samuel Lévêque, Nick Kornweibel, Henri Bonnet, P. La Penna, A.-L. Cheffot, I. Guidolin, C. Frank, Steffan Lewis, J. Kosmalski, Thomas Pfrommer, Jason Spyromilio
Publikováno v:
Ground-based and Airborne Telescopes VII.
We present an optomechanical test bench setup (MELT) for testing and validating key functionalities to be used on the Extremely Large Telescope (ELT) during the periods of system verification, wavefront control commissioning, through the handover to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecf776ce8df7ce39f38b5a2fe3c7e73a
https://doi.org/10.1117/12.2313537
https://doi.org/10.1117/12.2313537
Autor:
Ronald Holzlöhner, Thomas Pfrommer, Wolfgang Hackenberg, Domenico Bonaccini Calia, Steffan Lewis
Publikováno v:
Advanced Optical Technologies. 3:345-361
Ground-based optical telescopes, in particular large ones, require adaptive optics to overcome the atmospheric seeing limit due to turbulence. Correcting the distorted wavefront necessitates bright stars in the field of view. The sky coverage can be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a5080837de169d28c3fc6c477721fea
https://doi.org/10.1515/aot-2014-0025
https://doi.org/10.1515/aot-2014-0025
Autor:
Antonio Manescau, Suzanne Ramsay, Juan Carlos Gonzáles Herrera, Orsolya Szecsenyi, Mark Casali, Peter M. Gray, Sylvain Oberti, Johannes Schimpelsberger, Roberto Tamai, Derek Ives, Florian Kerber, Christian Schmid, Markus Kasper, Paolo Padovani, Joel Vernet, Christoph Haupt, Steffan Lewis, Vincenzo Mainieri, Ralf Siebenmorgen, Enrico Marchetti, Michele Cirasuolo, Peter Hammersley, Sebastian Egner, Lieselotte Jochum
Publikováno v:
SPIE Proceedings.
A suite of seven instruments and associated AO systems have been planned as the "E-ELT Instrumentation Roadmap". Following the E-ELT project approval in December 2014, rapid progress has been made in organising and signing the agreements for construc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10c9653461695b00474df24bb8c1b2d8
https://doi.org/10.1117/12.2232407
https://doi.org/10.1117/12.2232407
Autor:
F. Pedreros Bustos, Ronald Holzlöhner, S. M. Rochester, Dmitry Budker, Fernando Pedichini, D. Bello, D. Bonaccini Calia, I. Guidolin, I. Montilla, G. Lombardi, M. Reyes Garcia Talavera, Steffan Lewis, Thomas Pfrommer, Mauro Centrone, Wolfgang Hackenberg
Publikováno v:
Adaptive Optics Systems V.
We report on the comparison between observations and simulations of a completed 12-month field observation campaign at Observatorio del Teide, Tenerife, using ESO's transportable 20 watt CW Wendelstein laser guide star system. This mission has provid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27585bc92200730da52d55911c8122a8
https://doi.org/10.1117/12.2233072
https://doi.org/10.1117/12.2233072
Publikováno v:
Adaptive Optics Systems V.
Recent numerical simulations and experiments on sodium Laser Guide Star (LGS) have shown that a continuous wave (CW) laser with circular polarization and re-pumping should maximize the fluorescent photon return flux to the wavefront sensor for adapti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e78c4f792cb9a857120a9d380a313b27
https://doi.org/10.1117/12.2232524
https://doi.org/10.1117/12.2232524