... data

Based on observations obtained with the Gemini North Telescope and the NASA/ESA Hubble Space Telescope.

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... report

The description of the Galactic Center dataset can be found at http://www.gemini.edu/gallery/observing/release_doc/manual.html, and the Gemini North science demonstration data are publicly available at http://www.gemini.edu/sciops/data/dataSV.html

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... IRAF

IRAF is distributed by the National Optical Astronomy Observatories, which are operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation.

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... anisoplanatism

The anisoplanatism describes the degradation of the AO correction due to differences between wave fronts coming from different directions.

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... angle

The isoplanatic angle is defined as the angular distance for which the rms error of the wave front is less than 1 radian.

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