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Proceedings Paper

Commissioning the MMT ground-layer and laser tomography adaptive optics systems
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Paper Abstract

A multi-laser adaptive optics system, at the 6.5 m MMT telescope, has been undergoing commissioning in preparation for wide-field, partially corrected as well as narrow-field, diffraction limited science observations in the thermal and near infrared. After several delays due to bad weather, we have successfully closed the full high order ground-layer adaptive optics (GLAO) control loop for the first time in February 2008 using five Rayleigh laser guide stars and a single tilt star. Characterization and automated correction of static aberrations such as non-common path errors were addressed in May 2008. Calibration measurements in preparation for laser tomography adaptive optics (LTAO) operation are planned for the fall of 2008 along with the start of shared-risk GLAO science observations. We present the results of GLAO observations with the PISCES imager, a 1 - 2.5 &mgr;m camera with a field of view of 110 arc seconds. The status of the remaining GLAO commissioning work is also reviewed. Finally, we present plans for commissioning work to implement the LTAO operating mode of the system.

Paper Details

Date Published: 11 July 2008
PDF: 11 pages
Proc. SPIE 7015, Adaptive Optics Systems, 701522 (11 July 2008); doi: 10.1117/12.788541
Show Author Affiliations
N. Mark Milton, Univ. of Arizona/Steward Observatory (United States)
Michael Lloyd-Hart, Univ. of Arizona/Steward Observatory (United States)
Christoph Baranec, Caltech Optical Observatories, California Institute of Technology (United States)
Thomas Stalcup Jr., Univ. of Arizona/Steward Observatory (United States)
Keith Powell, Univ. of Arizona/Steward Observatory (United States)
Don McCarthy, Univ. of Arizona/Steward Observatory (United States)
Craig Kulesa, Univ. of Arizona/Steward Observatory (United States)
Keith Hege, Univ. of Arizona/Steward Observatory (United States)

Published in SPIE Proceedings Vol. 7015:
Adaptive Optics Systems
Norbert Hubin; Claire E. Max; Peter L. Wizinowich, Editor(s)

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