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Proceedings Paper

Scientific goals for the MMT's multilaser-guided adaptive optics
Author(s): Michael Lloyd-Hart; Thomas Stalcup; Christoph Baranec; N. Mark Milton; Matthew Rademacher; Miguel Snyder; Michael Meyer; Daniel Eisenstein
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Paper Abstract

The MMT's five Rayleigh laser guide star system has successfully demonstrated open loop wavefront sensing for both ground-layer and laser tomography adaptive optics (AO). Closed loop correction is expected for the first time in the autumn of 2006. The program is moving into its second phase: construction of a permanent facility to feed AO instruments now used with the telescope's existing natural star AO system. The new facility will preserve the thermal cleanliness afforded by the system's adaptive secondary mirror. With the present laser power of 4 W in each of the Rayleigh beacons, we will first offer ground-layer correction over a 2 arcmin field in J, H, and K bands, with expected image quality routinely 0.2 arcsec or better. Later, we will also offer imaging and spectroscopy from 1.5 to 4.8 μm with a tomographically corrected diffraction limited beam. The development of these techniques will lead to a facility all-sky capability at the MMT for both ground-layer and diffraction-limited imaging, and will be a critical advance in the tools necessary for extremely large telescopes of the future, particularly the Giant Magellan Telescope. We describe the present state of system development, planned progress to completion, and highlight the early scientific applications.

Paper Details

Date Published: 28 June 2006
PDF: 9 pages
Proc. SPIE 6272, Advances in Adaptive Optics II, 62724J (28 June 2006); doi: 10.1117/12.672481
Show Author Affiliations
Michael Lloyd-Hart, Steward Observatory, The Univ. of Arizona (United States)
Thomas Stalcup, Steward Observatory, The Univ. of Arizona (United States)
Christoph Baranec, Steward Observatory, The Univ. of Arizona (United States)
N. Mark Milton, Steward Observatory, The Univ. of Arizona (United States)
Matthew Rademacher, Steward Observatory, The Univ. of Arizona (United States)
Miguel Snyder, Steward Observatory, The Univ. of Arizona (United States)
Michael Meyer, Steward Observatory, The Univ. of Arizona (United States)
Daniel Eisenstein, Steward Observatory, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 6272:
Advances in Adaptive Optics II
Brent L. Ellerbroek; Domenico Bonaccini Calia, Editor(s)

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