Atmospheric phase measurements with the Mark III stellar interferometer

Details Atmospheric phase measurements with the Mark III stellar interferometer Atmospheric phase measurements with the Mark III stellar interferometer

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apopt..26.4106c&link_type=abstract

Applied Optics (ISSN 0003-6935), vol. 26, Oct. 1, 1987, p. 4106-4112.

Physics

Optics

51

Astrometry, Atmospheric Turbulence, Phase Coherence, Phase Switching Interferometers, Accuracy, Diffraction Patterns, Kolmogoroff Theory, Spatial Filtering, Stellar Parallax

Scientific paper

The effect of atmospheric turbulence on the measurements of stellar positions performed by the Mt. Wilson phase-coherent stellar Mark III interferometer was investigated, both for the case of a simple Kolmogorov spatial spectrum and for the case of a model incorporating a finite outer scale. Measurements of phase difference at a 12-m base line obtained with the Mark III interferometer agreed well with the predictions of a Kolmogorov spatial spectrum over the frequency range 0.001-100 Hz. From these measurements, the outer scale of turbulence for propagation through the entire atmosphere was estimated to be greater than 2 km.

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