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The Subaru Seminar is usually held in Room 104 of the Hilo Base Facility, adjacent to the main lobby. Everyone is welcome to attend. If you are interested in giving a seminar, please contact Subaru seminar organizers (Tomonori Usuda, Kumiko S. Usuda, Masayuki Akiyama) by email : (please change"_at" to @).

December 11, Tuesday at 11:00 am

" Adaptive Optics at the MPIA - From ALFA into the NIRVANA "

Sebastian E. Egner (MPIA)

The Max-Planck-Institute for Astronomy in Heidelberg, Germany (MPIA) first got involved in Adaptive Optics for Astronomy in the early 1990s with a tip/tilt secondary for the UKIRT and the ALFA system for the 3.5m telescope on Calar Alto. Ever since then, the MPIA has been involved in various AO instruments and LGS facilities for Calar Alto, the VLT, and the LBT. I will give a short overview of past, current and future instruments developed at the MPIA in the context of Adaptive Optics. Then I will focus on two particular projects, which I have been involved in over the last few years. The first project is a site characterization campaign with a SCIDAR of Mt. Graham, the site of the LBT, to determine the vertical profile of the atmospheric turbulence. The second project is to characterize a prototype of the layer-oriented MCAO system of LINC-NIRVANA in closed-loop operation. As an outlook I would like to show some areas for a future collaboration between Subaru and MPIA related to Adaptive Optics instrumentation.

Seminars are also held at JAC, CFHT, and IfA.

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