Atmospheric phase fluctuation measurement: interferometric results from the WHT and COAST telescopes

Christopher A. Haniff; John E. Baldwin; Peter J. Warner; Tania R. Scott

doi:10.1117/12.177257

9 June 1994 Atmospheric phase fluctuation measurement: interferometric results from the WHT and COAST telescopes

Christopher A. Haniff, John E. Baldwin, Peter J. Warner, Tania R. Scott

Proceedings Volume 2200, Amplitude and Intensity Spatial Interferometry II; (1994) https://doi.org/10.1117/12.177257
Event: 1994 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century, 1994, Kailua, Kona, HI, United States

Abstract

We have used interferometric methods to track the atmospheric phase fluctuations at two astronomical sites: the Observatorio del Roque de los Muchachos in the Canary Islands, the site of the 4.2-m William Herschel Telescope (WHT), and the Lord's Bridge observatory in Cambridge, the location of the Cambridge Optical Aperture Synthesis Telescope (COAST). At both sites the atmospheric perturbations are well characterized by Kolmogorov turbulence. At the WHT we find no obvious evidence for saturation of the turbulence over the range of spatial scales investigated, although there are rapid variations in the seeing on timescales of minutes.

Citation Download Citation

Christopher A. Haniff, John E. Baldwin, Peter J. Warner, and Tania R. Scott "Atmospheric phase fluctuation measurement: interferometric results from the WHT and COAST telescopes", Proc. SPIE 2200, Amplitude and Intensity Spatial Interferometry II, (9 June 1994); https://doi.org/10.1117/12.177257

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