Journal Article

Atmospheric optical turbulence at the Roque de los Muchachos Observatory: data base and recalibration of the generalized SCIDAR data

B. García-Lorenzo and J. J. Fuensalida

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 416, issue 3, pages 2123-2129
Published in print September 2011 | ISSN: 0035-8711
Published online September 2011 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2011.19186.x
Atmospheric optical turbulence at the Roque de los Muchachos Observatory: data base and recalibration of the generalized SCIDAR data

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We present the largest data base so far of atmospheric optical turbulence profiles [197 035 individual C2N(h)] for an astronomical site, the Roque de los Muchachos Observatory (La Palma, Spain). This C2N(h) data base was obtained through generalized SCIDAR observations at the 1-m Jacobus Kapteyn Telescope from 2004 February to 2009 August, obtaining useful data for 211 nights. The overestimation of the turbulence strength induced during the generalized SCIDAR data processing has been analysed for the different observational configurations. All the individual C2N(h) have been recalibrated to compensate for the errors introduced during data treatment. Comparing the results from profiles before and after the recalibration, we analyse its impact on the calculation of relevant parameters for adaptive optics.

Keywords: atmospheric effects; instrumentation: adaptive optics; site testing

Journal Article.  4078 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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