Open AccessPerformance of the Gemini Planet Imager’s adaptive optics system
Author(s) -
Lisa Poyneer,
David Palmer,
Bruce Macintosh,
Dmitry Savransky,
Naru Sadakuni,
Sandrine Thomas,
Jean-Pierre Véran,
Katherine B. Follette,
Alexandra Z. Greenbaum,
S. Mark Ammons,
Vanessa P. Bailey,
Brian Bauman,
Andrew Cardwell,
Daren Dillon,
Donald T. Gavel,
Markus Hartung,
Pascale Hibon,
Marshall D. Perrin,
Fredrik T. Rantakyrö,
Anand Sivaramakrishnan,
Jason Wang
Publication year - 2016
Publication title -
applied optics
Language(s) - English
Resource type - Journals
ISSN - 0003-6935
DOI - 10.1364/ao.55.000323
Subject(s) - adaptive optics , exoplanet , wavefront , optics , planet , deformable mirror , wavefront sensor , remote sensing , physics , atmospheric optics , image quality , computer science , geology , astronomy , computer vision , image (mathematics)
The Gemini Planet Imager's adaptive optics (AO) subsystem was designed specifically to facilitate high-contrast imaging. A definitive description of the system's algorithms and technologies as built is given. 564 AO telemetry measurements from the Gemini Planet Imager Exoplanet Survey campaign are analyzed. The modal gain optimizer tracks changes in atmospheric conditions. Science observations show that image quality can be improved with the use of both the spatially filtered wavefront sensor and linear-quadratic-Gaussian control of vibration. The error budget indicates that for all targets and atmospheric conditions AO bandwidth error is the largest term.