We present the Wavefront Sensor units of the Gravity Plus Adaptive Optics (GPAO) system, which will equip all 8m class telescopes of the VLTI and is an instrumental part of the GRAVITY+ project. It includes two modules for each Wavefront Sensor unit: a Natural Guide Star sensor with high-order 40x40 Shack-Hartmann and a Laser Guide Star 30x30 sensor. The state-of-the-art AO correction will considerably improve the performance for interferometry, in particular high-contrast observations for NGS observations and all-sky coverage with LGS, which will be implemented for the first time on VLTI instruments. In the following, we give an overview of the Wavefront Sensor units system after completion of their integration and characterization.
@article{arxiv.2409.08438,
title = {GRAVITY+ Wavefront Sensors: High-Contrast, Laser Guide Star, Adaptive Optics systems for the VLTI},
author = {G. Bourdarot and F. Eisenhauer and S. Yazıcı and H. Feuchtgruber and J-B Le Bouquin and M. Hartl and C. Rau and J. Graf and N. More and E. Wieprecht and F. Haussmann and F. Widmann and D. Lutz and R. Genzel and F. Gonte and S. Oberti and J. Kolb and J. Woillez and H. Bonnet and D. Schuppe and A. Brara and J. Hartwig and A. Goldbrunner and C. Furchtsam and F. Soller and S. Czempiel and J. Eibl and D. Huber and S. Uysal and I. Treffler and H. Ozdemir and V. Gopinatha and P. Bourget and A. Berdeu and S. Gillessen and T. Ott and P. Berio and O. Boebion and F. Millour and R. Dembet and C. Edouard and T. Gomes and T. Shimizu and A. Drescher and M. Fabricius and J. Shangguan and S. Lagarde and S. Robbe-Dubois and F. Allouche and H. Nowacki and D. Defrere and P. J. V. Garcia and S. Hoenig and L. Kreidbergg and T. Paumard and C. Straubmeier},
journal= {arXiv preprint arXiv:2409.08438},
year = {2024}
}
Comments
Optical and Infrared Interferometry and Imaging IX