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Proceedings Paper

Site-seeing measurements for the European Solar Telescope
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Paper Abstract

Seeing measurements are crucial for the optimum design of (multi-conjugate) adaptive optics systems operating at solar telescopes. For the design study of the 4-meter European Solar Telescope, to be located in the Canary Islands, several instruments have been constructed and operated, at the Observatorio del Roque de los Muchachos (La Palma) and at the Observatorio del Teide (Tenerife), to measure the properties of the ground layer and medium-high altitude turbulence. Several units of short (42.34 cm) and two long (323.06 cm) scintillometer bars are, or are to be, installed at both observatories. In addition to them, two wide-field wavefront sensors will be attached to the optical beams of the Swedish tower, on La Palma, and of the German VTT, on Tenerife, simultaneously used with the normal operation of the telescopes. These wavefront sensors are of Shack-Hartmann type with ~1 arcminute field of view. In this contribution, the instruments setup and their performance are described.

Paper Details

Date Published: 5 August 2010
PDF: 10 pages
Proc. SPIE 7733, Ground-based and Airborne Telescopes III, 77334I (5 August 2010); doi: 10.1117/12.857025
Show Author Affiliations
Th. Berkefeld, Kiepenheuer-Institut für Sonnenphysik (Germany)
F. Bettonvil, Univ. Utrecht (Netherlands)
M. Collados, Instituto de Astrofísica de Canarias (Spain)
R. López, Instituto de Astrofísica de Canarias (Spain)
Y. Martín, Instituto de Astrofísica de Canarias (Spain)
J. Peñate, Instituto de Astrofísica de Canarias (Spain)
A. Pérez, Instituto de Astrofísica de Canarias (Spain)
G. B. Scharmer, The Royal Swedish Academy and Stockholm Univ. (Sweden)
G. Sliepen, Univ. Utrecht (Netherlands)
D. Soltau, Kiepenheuer-Institut für Sonnenphysik (Germany)
T. A. Waldmann, Kiepenheuer-Institut für Sonnenphysik (Germany)
T. van Werkhoven, Univ. Utrecht (Netherlands)
The Royal Swedish Academy and Stockholm Univ. (Sweden)

Published in SPIE Proceedings Vol. 7733:
Ground-based and Airborne Telescopes III
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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