In this paper we present the Adaptive Optics Lucky Imager (AOLI), a state-of-the-art instrument which makes use of two well proved techniques for extremely high spatial resolution with ground-based telescopes: Lucky Imaging (LI) and Adaptive Optics (AO). AOLI comprises an AO system, including a low order non-linear curvature wavefront sensor together with a 241 actuators deformable mirror, a science array of four 1024x1024 EMCCDs, allowing a 120x120 down to 36x36 arcseconds field of view, a calibration subsystem and a powerful LI software. Thanks to the revolutionary WFS, AOLI shall have the capability of using faint reference stars ({\it I\/} ∼ 16.5-17.5), enabling it to be used over a much wider part of the sky than with common Shack-Hartmann AO systems. This instrument saw first light in September 2013 at William Herschel Telescope. Although the instrument was not complete, these commissioning demonstrated its feasibility, obtaining a FWHM for the best PSF of 0.151±0.005 arcsec and a plate scale of 55.0±0.3 mas/pixel. Those observations served us to prove some characteristics of the interesting multiple T Tauri system LkHα 262-263, finding it to be gravitationally bounded. This interesting multiple system mixes the presence of proto-planetary discs, one proved to be double, and the first-time optically resolved pair LkHα 263AB (0.42 arcsec separation).
@article{arxiv.1502.03778,
title = {Adaptive Optics and Lucky Imager (AOLI): presentation and first light},
author = {S. Velasco and R. Rebolo and C. Mackay and A. Oscoz and D. L. King and J. Crass and A. Díaz-Sánchez and B. Femenía and V. González-Escalera and L. Labadie and R. L. López and A. Pérez Garrido and M. Puga and L. F. Rodríguez-Ramos and J. Zuther},
journal= {arXiv preprint arXiv:1502.03778},
year = {2015}
}