title: Removing static aberrations from the active optics system of a wide-field telescope.
abstract: The wavefront sensor in active and adaptive telescopes is usually not in the optical path toward the scientific detector. It may generate additional wavefront aberrations, which have to be separated from the errors due to the telescope optics. The aberrations that are not rotationally symmetric can be disentangled from the telescope aberrations by a series of measurements taken in the center of the field, with the wavefront sensor at different orientation angles with respect to the focal plane. This method has been applied at the VLT Survey Telescope on the ESO Paranal observatory.
authors: Istituto Nazionale di Astrofisica-Osservatorio Astronomico di Capodimonte, Naples, Italy. pietro.schipani@oacn.inaf.it
authors: Pietro
authors: P
authors: Schipani
authors: Lothar
authors: L
authors: Noethe
authors: Carmelo
authors: C
authors: Arcidiacono
authors: Javier
authors: J
authors: Argomedo
authors: Massimo
authors: M
authors: Dall'Ora
authors: Sergio
authors: S
authors: D'Orsi
authors: Jacopo
authors: J
authors: Farinato
authors: Demetrio
authors: D
authors: Magrin
authors: Laurent
authors: L
authors: Marty
authors: Roberto
authors: R
authors: Ragazzoni
authors: Gabriele
authors: G
authors: Umbriaco