@inproceedings{202e62eb73f84f8e8aa1f861413ddeea,
title = "CHARA array adaptive optics: Complex operational software and performance",
abstract = "The CHARA Array is the longest baseline optical interferometer in the world. Operated with natural seeing, it has delivered landmark sub-milliarcsecond results in the areas of stellar imaging, binaries, and stellar diameters. However, to achieve ambitious observations of faint targets such as young stellar objects and active galactic nuclei, higher sensitivity is required. For that purpose, adaptive optics are developed to correct atmospheric turbulence and non-common path aberrations between each telescope and the beam combiner lab. This paper describes the AO software and its integration into the CHARA system. We also report initial on-sky tests that demonstrate an increase of scientific throughput by sensitivity gain and by extending useful observing time in worse seeing conditions. Our 6 telescopes and 12 AO systems with tens of critical alignments and control loops pose challenges in operation. We describe our methods enabling a single scientist to operate the entire system.",
keywords = "Adaptive optics, CHARA, EMCCD, Long baseline interferometry, Shack-Hartmann, Wavefront sensor",
author = "Narsireddy Anugu and {Ten Brummelaar}, Theo and Turner, {Nils H.} and Anderson, {Matthew D.} and {Le Bouquin}, {Jean Baptiste} and Judit Sturmann and Laszlo Sturmann and Chris Farrington and Norm Vargas and Olli Majoinen and Ireland, {Michael J.} and Monnier, {John D.} and Denis Mourard and Gail Schaefer and Gies, {Douglas R.} and Ridgway, {Stephen T.} and Stefan Kraus and Cyril Petit and Michel Tallon and Lim, {Caroline B.} and Philippe Berio",
note = "Publisher Copyright: {\textcopyright} COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; Optical and Infrared Interferometry and Imaging VII 2020 ; Conference date: 14-12-2020 Through 22-12-2020",
year = "2020",
doi = "10.1117/12.2561560",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Tuthill, {Peter G.} and Antoine Merand and Stephanie Sallum",
booktitle = "Optical and Infrared Interferometry and Imaging VII",
address = "United States",
}