Interferometric seeing measurements at the La Palma Observatory

Details Interferometric seeing measurements at the La Palma Observatory Interferometric seeing measurements at the La Palma Observatory

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.251..155n&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 251, July 1, 1991, p. 155-166. Research supported by SE

Astronomy and Astrophysics

Astronomy

30

Astronomical Observatories, Interferometry, Seeing (Astronomy), Astronomical Models, Power Spectra, Telescopes

Scientific paper

An interferometric seeing monitor is described which measures the wavefront perturbations due to the atmosphere directly, rather than depending on an assumed model for these perturbations. It is able to measure simultaneously both the spatial and temporal parameters of the seeing (r0 and t0) and to test theoretical models. Results are reported from the commissioning run on the William Herschel Telescope. It is found that the seeing at optical wavelengths is well described by a model where the perturbations are due to turbulence with Kolmogorov statistics, and evidence is shown that the outer scale of this turbulence is about 2 m at the La Palma Observatory.

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