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Eddy Younger, Sofia Dimoudi, Tim Morris, Matthew J. Townson
We describe the design of the HARMONI adaptive optics control system. HARMONI is the first light visible and nearIR integral field spectrograph for the ELT. It covers a large spectral range from 450nm to 2450nm, and can operate in two Adaptive Optics …
gb (code pays fourni par la source)
Niranjan Thatte, Ian Bryson, Fraser Clarke, Vanessa Ferraro-Wood et autres
HARMONI is the adaptive optics assisted, near-infrared and visible light integral field spectrograph for the Extremely Large Telescope (ELT). A first light instrument, it provides the work-horse spectroscopic capability for the ELT. As the project approaches its Final Design Review milestone, the …
gb, fr, es (code pays fourni par la source)
Huizhe Yang, Nazim A. Bharmal, Richard M. Myers, Eddy Younger
Adaptive optics (AO) is widely used in optical/near-infrared telescopes to remove the effects of atmospheric distortion, and laser guide stars (LGSs) are commonly used to ease the requirement for a bright, natural reference source close to the scientific target in an AO …
gb (code pays fourni par la source)
Tim Morris, É. Gendron, Carine Morel, Thierry Fusco et autres
MOSAIC is a mixed-mode multiple object spectrograph planned for the ELT that uses a tiled focal plane to support a variety of observing modes. The MOSAIC AO system uses 4 LGS WFS and up to 4 NGS WFS positioned anywhere within the …
gb, fr (code pays fourni par la source)
David R. Jenkins, Alastair Basden, Richard M. Myers, James Osborn et autres
Adaptive Optics (AO) is a necessary technology for ensuring the success of the next generation of extremely large telescopes (ELTs). It’s used to help mitigate the perturbing effects of Earth’s atmosphere on the incoming light from astronomical objects and will be an …
gb, fr (code pays fourni par la source)
Huizhe Yang, Nazim A. Bharmal, Richard M. Myers, Alastair Basden et autres
For the next generation of extremely large telescopes with the primary mirrors over 30 m in diameter, focal anisoplanatism renders single laser guide star AO useless. The laser tomography AO (LTAO) technique demonstrates an effective approach to reduce focal anisoplanatism, although it …
gb, es (code pays fourni par la source)
David R. Jenkins, Alastair Basden, Richard M. Myers, James Osborn et autres
With the next-generation of Extremely Large Telescopes (ELTs), the demands of adaptive optics real-time control (AO RTC) increase massively compared to the most complex AO systems in use today. Green Flash, an ongoing EU funded project, is investigating the optimal architecture for …
gb, fr (code pays fourni par la source)
Damien Gratadour, James Osborn, Hugues Deneux, Roberto Biasi et autres
The Green Flash initiative responds to a critical challenge in the astronomical community. Scaling up the real-time control solutions of AO instruments in operation to the specifications of the AO modules at the core of the next generation of extremely large telescopes …
fr, gb, it (code pays fourni par la source)
Alastair Basden, Damien Gratadour, Arnaud Sevin, D. Perret et autres
We present the outcomes of an evaluation of middleware technologies for adaptive optics real-time control against the requirements of the Green Flash project, which are derived from the most demanding requirements of proposed first generation E-ELT instruments. The technology down-selection process applied …
gb, fr (code pays fourni par la source)
Alastair Basden, Tim Morris, Matthew J. Townson, David R. Jenkins et autres
The proposed MOSAIC first-generation instrument for the ELT is a multi-object spectrograph utilising a combined MOAO and GLAO system. With 8 separate wavefront sensors (4 LGS and 4 NGS), and 10 separate deformable mirrors, in addition to the ELT M4 mirror, MOSAIC …
gb (code pays fourni par la source)
Damien Gratadour, N. A. Dipper, Roberto Biasi, Hugues Deneux et autres
The main goal of Green Flash is to design and build a prototype for a Real-Time Controller (RTC) targeting the European Extremely Large Telescope (E-ELT) Adaptive Optics (AO) instrumentation. The E-ELT is a 39m diameter telescope to see first light in the …
fr, gb, it (code pays fourni par la source)
Nazim A. Bharmal, Alastair Basden, Cyril Bourgenot, Martin Black et autres
CHOUGH is a small, fast project to provide an experimental on-sky high-order SCAO capability to the 4.2m WHT telescope. The basic goal has r0-sized sub- apertures with the aim of achieving high-Strehl ratios (> 0:5) in the visible (> 650 nm). It …
gb (code pays fourni par la source)
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