ERIS is the new AO instrument for VLT-UT4 led by a Consortium of Max-Planck Institut fuer Extraterrestrische Physik, UK-ATC, ETH-Zurich, NOVA-Leiden, 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 coronagraphic imager NIX (1-5um) and the IFU spectrograph SPIFFIER (1-2.5um). In this paper, we present the final design of the ERIS AO system and the status of the of current MAIV phase.
A. Riccardi, S. Esposito, G. Agapito, V. Biliotti, R. Briguglio, L. Carbonaro, G. Di Rico, D. Ferruzzi, C. Giordano, P. Grani, T. Mazzoni, A. Puglisi, M. Xompero, M. Bonaglia, A. Baruffolo, M. Kasper, R. J. Dorn, D. Barr, M. Downing, J. Reyes, C. Soenke, and M. Suárez Valles, "The ERIS adaptive optics system: from design to hardware," Proc. SPIE 10703, Adaptive Optics Systems VI, 1070303 (Presented at SPIE Astronomical Telescopes + Instrumentation: June 10, 2018; Published: 10 July 2018); https://doi.org/10.1117/12.2309869.
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