@inproceedings{4c576f84496644e087744233f4691e30,
title = "The Giant Magellan Telescope laser tomography adaptive optics system",
abstract = "Laser tomography adaptive optics (LTAO) will allow Extremely Large Telescope to get nearly di_raction limited images over a large fraction of the sky. For such systems, the sky coverage is limited by the number of natural guide star (NGS) suitable to estimate the tip and tilt (TT) modes of the atmosphere. The LTAO system of the Giant Magellan Telescope is using 6 LGSs launched from the telescope rim and a single NGS to measure the tip-tilt and focus atmospheric modes. A deformable mirror (DM) in open-loop corrects the anisoplanatism error of the NGS wavefront on the TT sensor. The NGS light is shared with 2 truth sensors slowly monitoring the ASM and the DM. End-to-end simulation have shown that the LTAO system exceed the science requirements and has a very high sky coverage.",
author = "R. Conan and F. Bennet and Bouchez, {A. H.} and {van Dam}, {M. A.} and B. Espeland and W. Gardhouse and C. d'Orgeville and N. Paulin and P. Piatrou and I. Price and F. Rigaut and G. Trancho and K. Uhlendorf",
year = "2013",
doi = "10.12839/AO4ELT3.12521",
language = "English",
isbn = "9788890887604",
series = "3rd AO4ELT Conference - Adaptive Optics for Extremely Large Telescopes",
publisher = "INAF - Osservatorio Astrofisico di Arcetri Largo Enrico Fermi",
booktitle = "3rd AO4ELT Conference - Adaptive Optics for Extremely Large Telescopes",
note = "3rd Conference on Adaptive Optics for Extremely Large Telescopes, AO4ELT 2013 ; Conference date: 26-05-2013 Through 31-05-2013",
}