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24 April 2024

» arxiv » 1608.3230

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AOLI: Near-diffraction limited imaging in the visible on large ground-based telescopes
Craig Mackay ; Rafael Rebolo ; David King ; Lucas Labadie ; Marta Puga Antolin ; Antonio Garrido ; Carlos Colodro-Conde ; Roberto Lopez ; Balaji Muthusubramanian ; Alejandro Oscoz ; Jose Rodriguez-Ramos ; Luis Rodriquez-Ramos ; Jose Fernandez-Valdivia ; Sergio Velasco ;
Date:	10 Aug 2016
Abstract:	The combination of Lucky Imaging with a low order adaptive optics system was demonstrated very successfully on the Palomar 5m telescope nearly 10 years ago. It is still the only system to give such high-resolution images in the visible or near infrared on ground-based telescope of faint astronomical targets. The development of AOLI for deployment initially on the WHT 4.2 m telescope in La Palma, Canary Islands, will be described in this paper. In particular, we will look at the design and status of our low order curvature wavefront sensor which has been somewhat simplified to make it more efficient, ensuring coverage over much of the sky with natural guide stars as reference object. AOLI uses optically butted electron multiplying CCDs to give an imaging array of 2000 x 2000 pixels.
Source:	arXiv, 1608.3230
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