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The Lyot Project: Understanding the AEOS Adaptive Optics PSF

Published online by Cambridge University Press:  02 May 2006

Russell B. Makidon ,
A. Sivaramakrishnan ,
R. Soummer ,
B. R. Oppenheimer ,
L. C. Roberts ,
J. R. Graham  and
M. D. Perrin
Russell B. Makidon
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, MD 21218, USA NSF Center for Adaptive Optics
A. Sivaramakrishnan
Affiliation:
Department of Astrophysics, American Museum of Natural History, 79th Street at Central Park West, New York NY 10024, USA NSF Center for Adaptive Optics
R. Soummer
Affiliation:
Department of Astrophysics, American Museum of Natural History, 79th Street at Central Park West, New York NY 10024, USA NSF Center for Adaptive Optics
B. R. Oppenheimer
Affiliation:
Department of Astrophysics, American Museum of Natural History, 79th Street at Central Park West, New York NY 10024, USA
L. C. Roberts
Affiliation:
The Boeing Company, 535 Lipoa Pkwy, Suite 200, Kihei, HI 96753, USA
J. R. Graham
Affiliation:
Astronomy Department, University of California, Berkelely CA 94000, USA NSF Center for Adaptive Optics
M. D. Perrin
Affiliation:
Astronomy Department, University of California, Berkelely CA 94000, USA NSF Center for Adaptive Optics
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Abstract

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Adaptive optics (AO) systems have significantly improved astronomical imaging capabilities over the last decade, and are revolutionizing the kinds of science possible with 4-5 m class ground-based telescopes. A thorough understanding of AO system performance at the telescope can enable new frontiers of science as observations push AO systems to their performance limits. We look at the understanding we have gained from recent Lyot Project images at the Advanced Electro-Optical System (AEOS) 3.6 m telescope to show how progress made in improving WFR can be measured directly in improved science images. We describe how wave front errors affect the AO point-spread function (PSF), and model details of AEOS AO to simulate a PSF which matches the actual AO PSF in the astronomical H-band. Finally, we estimate the impact of improvements to wave front reconstruction techniques on diffraction-limited coronagraphy with the Lyot Project near-infrared coronagraph.

Keywords

instrumentation: adaptive opticsplanetary systems: protoplanetary disks
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Colloquium C200: Direct Imaging of Exoplanets: Science & Techniques , October 2005 , pp. 603 - 606
Copyright
© 2006 International Astronomical Union