@inproceedings{ac14c998e23a4056be0c7a87041c11ad,
title = "ALTAIR performance and updates at Gemini North",
abstract = "We present up-to-date performance characteristics for natural guide star (NGS) operation of the ALTAIR adaptive optics system at the Gemini N. 8m telescope. These results are obtained from a nightly performance monitoring campaign where we obtain a consistent set of point spread functions (PSFs) over a broad range of observing conditions. These results are compared with system modelling and circular buffer information from the Altair adaptive optics (AO) system. The latter show residual tip-tilt errors with a median rms ∼ 18.5 mas. We also present preliminary results from a new operational mode of the laser guide star (LGS) AO which will eventually yield all-sky access with image FWHM ∼ 0.1{"} -0.2{"}.",
keywords = "Adaptive optics, Laser guide star, Natural guide star, Performance, Strehl ratio",
author = "Christou, {Julian C.} and Benoit Neichel and Fran{\c c}ois Rigaut and Michael Sheehan and McDermid, {Richard M.} and Gelys Trancho and Chadwick Trujillo and Brian Walls",
year = "2010",
doi = "10.1117/12.856776",
language = "English",
isbn = "9780819482266",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
number = "PART 1",
booktitle = "Adaptive Optics Systems II",
edition = "PART 1",
note = "Adaptive Optics Systems II ; Conference date: 27-06-2010 Through 02-07-2010",
}