Tip-tilt compensation for astronomical imaging.

Details Tip-tilt compensation for astronomical imaging. Tip-tilt compensation for astronomical imaging.

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994josaa..11..368o&link_type=abstract

Journal of the Optical Society of America A, Vol. 11, No. 1, p. 368 - 378

Physics

Optics

8

Adaptive Optics

Scientific paper

The authors present a performance analysis of tip-tilt-compensation systems that use natural stars as tilt references. Taking into account properties of the atmosphere and of the galactic stellar populations, the authors optimize operating parameters over the system to determine performance limits for several varieties of tip-tilt-compensation system operating on a 10-m telescope on Mauna Kea, Hawaii. They find that, for systems that use a single tilt reference star, if the image of the star is uncorrected, a one-axis root-mean-square tilt residual of less than 190 nrad can be obtained for at least 99% of all astronomical objects, whereas if the image of the tilt reference star is fully corrected this limit drops to 90 nrad.

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