21 July 2014 Laser guide star adaptive optics point spread function reconstruction project at W. M. Keck Observatory: preliminary on-sky results
Author Affiliations +
Abstract
We present in this paper an analysis of our preliminary results for point spread function reconstruction in laser guide star (LGS) mode for the Keck-II adaptive optics system. Our approach is based on an update of the natural guide star algorithm with the LGS terms. The first reconstruction we have done is based on a set of 13 LGS runs (telemetry data and sky PSF) for which we demonstrate already a significant correlation between the reconstructed and sky PSF metrics. At this point of the project, though, our reconstructed PSF does not reproduce the sky PSF features (and this is expected) : we discuss why, and describe the different issues we have to solve, and the different experiment we will do, in order to achieve a good reconstruction.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Laurent Jolissaint, Sam Ragland, Peter Wizinowich, Audrey Bouxin, "Laser guide star adaptive optics point spread function reconstruction project at W. M. Keck Observatory: preliminary on-sky results", Proc. SPIE 9148, Adaptive Optics Systems IV, 91484S (21 July 2014); doi: 10.1117/12.2057154; https://doi.org/10.1117/12.2057154
PROCEEDINGS
9 PAGES


SHARE
Back to Top