Tip-tilt compensation - Resolution limits for ground-based telescopes using laser guide star adaptive optics

Details Tip-tilt compensation - Resolution limits for ground-based telescopes using laser guide star adaptive optics Tip-tilt compensation - Resolution limits for ground-based telescopes using laser guide star adaptive optics

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...407..428o&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 407, no. 1, p. 428-439.

Physics

Optics

22

Adaptive Optics, Angular Resolution, Instrument Compensation, Telescopes, Atmospheric Effects, Image Processing, Laser Applications, Turbulence Effects

Scientific paper

The study presents a comprehensive analysis of tip-tilt compensation systems that use a natural star as a tilt reference, taking into account properties of the atmosphere and of the Galactic stellar populations, and optimizing over the system operating parameters to determine the fundamental limits to the long-exposure resolution. It is shown that for a 10-m telescope on Mauna Kea, if the image of the tilt reference star is uncorrected, about half the sky can be imaged in the V band with long-exposure resolution less than 60 mas, while if the image of the tilt reference star is fully corrected, about half the sky can be imaged in the V band with long-exposure resolution less than 16 mas. V-band images with long-exposure resolution less than 16 mas may be obtained with a 10-m telescope on Mauna Kea for unresolved objects brighter than magnitude 22 that are fully corrected by a laser guide star adaptive optics system.

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