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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 559127.0, MPI für Astronomie / Publikationen_mpia
Dimensioning the Gravity adaptive optics wavefront sensor
Authors:Clénet, Y.; Gendron, E.; Rousset, G.; Hippler, S.; Eisenhauer, F.; Gillessen, S.; Perrin, G.; Amorim, A.; Brandner, W.; Perraut, K.; Straubmeier, C.
Language:English
Publisher:SPIE
Place of Publication:Bellingham, Wash.
Date of Publication (YYYY-MM-DD):2010
Title of Proceedings:Adaptive Optics Systems II
Start Page:77364A-77364A
End Page:17
Title of Series:SPIE
Volume (in Series):7736
Name of Conference/Meeting:Adaptive Optics Systems II
Review Status:not specified
Audience:Experts Only
Abstract / Description:We present the adaptive optics simulations we have performed to dimension the Gravity adaptive optics wavefront sensor. We first computed the optimal WFS bandpass, depending on the sampling frequency, detector readout noise and reference source colour/temperature. We then performed adaptive optics simulations with the YAO simulation tool for different WFS parameters (number of subpupils, number of pixels per subpupil, loop frequency, reference source magnitude, etc). Results demonstrate that the Gravity adaptive optics top-level requirements can be fulfilled with a 9×9 subaperture Shack-Hartmann with 4 pixels per subaperture using an H+K filter, a larger filter being recommended for sources bluer than 770 K reference source of the Galactic Centre.
Comment of the Author/Creator:Date: 2010, July 1, 2010
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://adsabs.harvard.edu/abs/2010SPIE.7736E.144C [ID No:1]
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