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High-resolution mesospheric sodium observations for extremely large telescopes.

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dc.contributor.author Pfrommer, Thomas
dc.contributor.author Hickson, Paul
dc.date.accessioned 2011-09-19T22:57:13Z
dc.date.available 2011-09-19T22:57:13Z
dc.date.issued 2010
dc.identifier.citation Pfrommer, Thomas; Hickson, Paul. High-resolution mesospheric sodium observations for extremely large telescopes. Adaptive Optics Systems II, edited by Brent L. Ellerbroek, Michael Hart, Norbert Hubin, Peter L. Wizinowich. Proceedings of SPIE Volume 7736, 773620, 2010. http://dx.doi.org/10.1117/12.857703 en_US
dc.identifier.uri http://hdl.handle.net/2429/37463
dc.description.abstract Variations in density structure and altitude of mesospheric sodium impact the performance of adaptive optics systems employing sodium laser guide stars. The associated wave-front errors grow as the square of the telescope aperture and will be very significant for the next generation of large-aperture ground-based optical/infrared telescopes. To support the adaptive optics program for the Thirty Meter Telescope and European Extremely Large Telescope, we are conducting a program of sodium monitoring using a high-resolution sodium lidar system on the 6-meter Large Zenith Telescope (LZT). Located at 49°N latitude, the LZT lidar system provides density profiles with spatial and temporal resolution sampling of 4.8 m and 20 ms. In this paper we report highlights of results obtained over two years of observations. Copyright 2010 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. en_US
dc.language.iso eng en_US
dc.publisher Society of Photo-Optical Instrumentation Engineers en_US
dc.title High-resolution mesospheric sodium observations for extremely large telescopes. en_US
dc.type text en_US
dc.type.text conference Paper en_US
dc.description.affiliation Physics and Astronomy, Dept of en_US
dc.description.reviewstatus Reviewed en_US
dc.rights.copyright Hickson, Paul en_US
dc.description.scholarlevel Faculty en_US

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