ExAO Experiments with a Well-Corrected Subaperture

Details ExAO Experiments with a Well-Corrected Subaperture ExAO Experiments with a Well-Corrected Subaperture

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007lyot.confe..43s&link_type=abstract

Proceedings of the conference In the Spirit of Bernard Lyot: The Direct Detection of Planets and Circumstellar Disks in the 21s

Computer Science

Performance

Scientific paper

A 1.5 m "well-corrected subaperture" (WCS) on the Palomar Hale telescope now regularly provides ExAO-level image quality, with stellar Strehl ratios exceeding 90%, corresponding to wavefront errors of under 100 nm. Using this system, a wide variety of ExAO experiments can thus be carried out well before `next generation' ExAO systems are deployed on large telescopes. Some of the experiments include infrared ExAO imaging and performance optimization, a comparison of coronagraphic approaches in the ExAO regime, visible wavelength AO, predictive AO, and exoplanet transit spectroscopy.

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