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Proceedings Paper

SRAO: optical design and the dual-knife-edge WFS
Author(s): Carl Ziegler; Nicholas M. Law; Andrei Tokovinin
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Paper Abstract

The Southern Robotic Adaptive Optics (SRAO) instrument will bring the proven high-efficiency capabilities of Robo-AO to the Southern-Hemisphere, providing the unique capability to image with high-angular-resolution thousands of targets per year across the entire sky. Deployed on the modern 4.1m SOAR telescope located on Cerro Tololo, the NGS AO system will use an innovative dual-knife-edge wavefront sensor, similar to a pyramid sensor, to enable guiding on targets down to V=16 with diffraction limited resolution in the NIR. The dual-knife-edge wavefront sensor can be up to two orders of magnitude less costly than custom glass pyramids, with similar wavefront error sensitivity and minimal chromatic aberrations. SRAO is capable of observing hundreds of targets a night through automation, allowing confirmation and characterization of the large number of exoplanets produced by current and future missions.

Paper Details

Date Published: 27 July 2016
PDF: 6 pages
Proc. SPIE 9909, Adaptive Optics Systems V, 99093Z (27 July 2016); doi: 10.1117/12.2231297
Show Author Affiliations
Carl Ziegler, Univ. of North Carolina at Chapel Hill (United States)
Nicholas M. Law, Univ. of North Carolina at Chapel Hill (United States)
Andrei Tokovinin, Cerro Tololo Inter-American Observatory (Chile)


Published in SPIE Proceedings Vol. 9909:
Adaptive Optics Systems V
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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