Progress on the VLT Adaptive Optics Facility

Details Progress on the VLT Adaptive Optics Facility Progress on the VLT Adaptive Optics Facility

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010msngr.142...12a&link_type=abstract

The Messenger, vol. 142, p. 12-16

Physics

Optics

2

Scientific paper

The Very Large Telescope (VLT) Adaptive Optics Facility is a project that will transform one of the VLT's Unit Telescopes into an adaptive telescope that includes a deformable mirror in its optical train. For this purpose the secondary mirror is to be replaced by a thin shell deformable mirror; it will be possible to launch four laser guide stars from the centrepiece and two adaptive optics modules are being developed to feed the instruments HAWK-I and MUSE. These modules implement innovative correction modes for seeing improvement through ground layer adaptive optics and, for high Strehl ratio performance, laser tomography adaptive correction. The performance of these modes will be tested in Europe with a custom test bench called ASSIST. The project has completed its final design phase and concluded an intense phase of procurement; the year 2011 will see the beginning of assembly, integration and tests.

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