The ERIS Adaptive Optics System
A. Riccardi, S. Esposito, G. Agapito, J. Antichi, V. Biliotti, C., Blain, R. Briguglio, L. Busoni, L. Carbonaro, G. Di Rico, C. Giordano, E., Pinna, A. Puglisi, P. Span\`o, M. Xompero, A. Baruffolo, M. Kasper, S. Egner,, M. Su\`arez Valles, C. Soenke, M. Downing, J. Reyes
TL;DR
ERIS is a new adaptive optics system for the VLT-UT4 that combines NGS and LGS modes to enhance high contrast and Strehl performance for high-resolution imaging and spectroscopy.
Contribution
This paper presents the preliminary design and estimated correction performance of the ERIS AO system, integrating NGS and LGS modes for the VLT.
Findings
Design of the ERIS AO system including wavefront sensors and deformable mirror
Estimated high Strehl correction performance for NIX and SPIFFIER instruments
Integration of AO correction with VLT-AOF facilities
Abstract
ERIS is the new AO instrument for VLT-UT4 led by a Consortium of Max-Planck Institut fuer Extraterrestrische Physik, UK-ATC, ETH-Zurich, ESO and INAF. The ERIS AO system provides NGS mode to deliver high contrast correction and LGS mode to extend high Strehl performance to large sky coverage. The AO module includes NGS and LGS wavefront sensors and, with VLT-AOF Deformable Secondary Mirror and Laser Facility, will provide AO correction to the high resolution imager NIX (1-5um) and the IFU spectrograph SPIFFIER (1-2.5um). In this paper we present the preliminary design of the ERIS AO system and the estimated correction performance.
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