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Proceedings Paper

On-sky MOAO performance evaluation of RAVEN
Author(s): Y. H. Ono; Carlos M. Correia; O. Lardière; D. R. Andersen; S. Oya; M. Akiyama; D. Gamroth; K. Jackson; O. Martin; C. Bradley
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Paper Abstract

This paper presents the AO performance we got on-sky with RAVEN, a Multi-Object Adaptive Optics (MOAO) technical and science demonstrator installed and tested at the Subaru telescope. We report Ensquared-Energy (EE) and Full Width at Half Maximum (FWHM) measured from science images on Subaru's IRCS taken during all of the on-sky observing runs. We show these metrics as function of different AO modes and atmospheric conditions for two asterisms of natural guide stars. The performances of the MOAO and Ground-Layer AO (GLAO) modes are between the classical Single-Conjugate AO (SCAO) and seeing-limited modes. We achieve the EE of 30% in H-band with the MOAO correction, which is a science requirement for RAVEN. The MOAO provides sightly better performance than the GLAO mode in both asterisms. One of the reasons which cause this small difference between the MOAO and GLAO modes may be the strong GL contribution. Also, the performance of the MOAO modes is affected by the accuracy of the on-sky turbulence profiling by the SLOpe Detection And Ranging (SLODAR) method.

Paper Details

Date Published: 26 July 2016
PDF: 6 pages
Proc. SPIE 9909, Adaptive Optics Systems V, 990910 (26 July 2016); doi: 10.1117/12.2232321
Show Author Affiliations
Y. H. Ono, Aix Marseille Univ., CNRS, LAM (France)
Carlos M. Correia, Aix Marseille Univ., CNRS, LAM (France)
O. Lardière, NRC - Herzberg (Canada)
D. R. Andersen, NRC - Herzberg (Canada)
S. Oya, National Astronomical Observatory of Japan (Japan)
M. Akiyama, Tohoku Univ. (Japan)
D. Gamroth, Univ. of Victoria (Canada)
K. Jackson, California Institute of Technology (United States)
O. Martin, Aix Marseille Univ., CNRS, LAM (France)
C. Bradley, Univ. of Victoria (Canada)

Published in SPIE Proceedings Vol. 9909:
Adaptive Optics Systems V
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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