Atmospheric turbulence and the resolution limits of large ground-based telescopes.

Details Atmospheric turbulence and the resolution limits of large ground-based telescopes. Atmospheric turbulence and the resolution limits of large ground-based telescopes.

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992josaa...9.1937m&link_type=abstract

Journal of the Optical Society of America A, Vol. 9, No. 11, p. 1937 - 1954

Physics

13

Scientific paper

Conventional theory of imaging through the atmosphere is based on two main assumptions: (1) atmospheric turbulence is assumed to follow a Kolmogorov spectrum and (2) the outer scale, Lo, is assumed to be much larger than any telescope. If Lo is smaller than previously thought, as is suggested here, many long-held ideas about imaging with ground-based telescopes will have to be modified. A much more favorable picture emerges, especially at near-infrared wavelengths. Recent images obtained at 2.2 μm with the 4-m Kitt peak telescope show that very high resolution (0.1 arcsec) is attainable. The images also show that telescope aberrations prevent even higher resolution (0.05 arcsec).

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