Physics – Optics
Scientific paper
Mar 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975mnras.170..519d&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 170, Mar. 1975, p. 519-532. Research supported by the Science Research
Physics
Optics
15
Astronomical Observatories, Atmospheric Turbulence, Coherent Light, Optical Measurement, Transfer Functions, Atmospheric Optics, Data Acquisition, Diffraction Patterns, Image Motion Compensation, Interferometry, Microdensitometers, Telescopes, Turbulence Effects
Scientific paper
Measurements are presented of the long time-averaged transfer function (or mutual coherence function) of the atmosphere, taken at Mauna Kea Observatory, Hawaii, using a coherence interferometer. Over the 10 nights of observation the seeing was variable, ranging from typical widths of the transfer function at the 25 per cent level of approximately 0.23 cycles/arcsec (2.5 cm in the pupil) to approximately 1.00 cycles/arcsec (11.0 cm in the pupil). The latter values correspond to sub-arcsec seeing. The variation with zenith angle and the form of the atmospheric transfer function were briefly investigated.
Dainty Christopher J.
Scaddan Richard J.
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