[Optique adaptative multi-conjugée avec le Vacuum Tower Telescope à Ténerife]
Nous présentons un système d'optique adaptative multi-conjugée (OAMC) pour des observations solaires à haute résolution spatiale avec le Vacuum Tower Telescope (VTT). Nous avons dévelopé des techniques pour estimer les performances du système à partir des données scientifiques. On a analysé plusieurs séries d'images courte-pose pour évaluer l'apport de l'OAMC. On montre que le champ corrigé augmente à 30 arc secondes sitôt que l'OAMC est mise en marche, une amélioration bien importante par rapport à l'OA conventionelle. Nous montrons aussi comment les fluctuations d'illumination focale peuvent être supprimées.
We present a breadboard multi-conjugate adaptive optics (MCAO) system for high angular resolution solar observations which we operate at the Vacuum Tower Telescope. We have developed methods to estimate quantitatively the performance of solar adaptive optics from science data. Several sets of short exposure images of the solar photosphere were analyzed to assess the performance of the MCAO. We demonstrate that a 30 arcsec field of view is substantially improved when the MCAO system is turned on. This compares favourably with an improvement of a 10 arcsec field with conventional solar adaptive optics. We also show how irradiance fluctuations in the MCAO compensated focus can be suppressed.
Mot clés : Optique adaptative multi-conjuguée, Observations solaires
@article{CRPHYS_2005__6_10_1139_0,
author = {Oskar von der L\"uhe and Thomas Berkefeld and Dirk Soltau},
title = {Multi-conjugate solar adaptive optics at the {Vacuum} {Tower} {Telescope} on {Tenerife}},
journal = {Comptes Rendus. Physique},
pages = {1139--1147},
publisher = {Elsevier},
volume = {6},
number = {10},
year = {2005},
doi = {10.1016/j.crhy.2005.09.007},
language = {en},
}
TY - JOUR AU - Oskar von der Lühe AU - Thomas Berkefeld AU - Dirk Soltau TI - Multi-conjugate solar adaptive optics at the Vacuum Tower Telescope on Tenerife JO - Comptes Rendus. Physique PY - 2005 SP - 1139 EP - 1147 VL - 6 IS - 10 PB - Elsevier DO - 10.1016/j.crhy.2005.09.007 LA - en ID - CRPHYS_2005__6_10_1139_0 ER -
Oskar von der Lühe; Thomas Berkefeld; Dirk Soltau. Multi-conjugate solar adaptive optics at the Vacuum Tower Telescope on Tenerife. Comptes Rendus. Physique, Volume 6 (2005) no. 10, pp. 1139-1147. doi : 10.1016/j.crhy.2005.09.007. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2005.09.007/
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