Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007pasp..119.1441e&link_type=abstract
Publications of the Astronomical Society of the Pacific, Volume 119, issue 862, pp.1441-1448
Astronomy and Astrophysics
Astronomy
16
Astronomical Phenomena And Seeing
Scientific paper
We propose a new method based on the generalized SCIDAR principle to characterize the vertical distribution of the turbulence in the first few hundred meters above the telescope with a better vertical resolution than usually achievable by such an instrument. Using a wide binary star (35″ separation) and analyzing the spatio-temporal cross-correlation images, we achieve a C N 2 profile with a vertical resolution of a few tens of meters. We present the principle and the data-reduction process of this method and show first results obtained with a SCIDAR instrument mounted to the Vatican Advanced Technology Telescope (VATT) on the top of Mount Graham. As an application, we estimate the fraction of the turbulence between the dome of the VATT and the primary mirror of the Large Binocular Telescope.
Egner Sebastian E.
Masciadri Elena
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