Publication type: Non-refereed

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    AOLI: Adaptive Optics Lucky Imager: diffraction limited imaging in the visible on large ground-based telescopes
    The highest resolution images ever taken in the visible were obtained by combining Lucky Imaging and low order adaptive optics. This paper describes a new...
  • Publication
    AOLI: near-diffraction limited imaging in the visible on large ground-based telescopes
    The combination of Lucky Imaging with a low order adaptive optics system was demonstrated very successfully on the Palomar 5m telescope nearly 10 years ago. It...
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    Apache Point Observatory Galactic Evolution Experiment (APOGEE) Spectrograph
    The Apache Point Observatory Galactic Evolution Experiment (APOGEE) will observe approximately 100,000 giant stars in the Milky Way with a dedicated fiber-fed...
  • Publication
    APE: a breadboard to evaluate new phasing technologies for a future European Giant Optical Telescope
    The point spread function of a segmented aperture is seriously affected by the misalignment of the segments. Stringent requirements apply to position sensors...
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    APE: the Active Phasing Experiment to test new control system and phasing technology for a European Extremely Large Optical Telescope
    The future European Extremely Large Telescope will be composed of one or two giant segmented mirrors (up to 100 m of diameter) and of several large monolithic...
  • Publication
    APOGEE Chemical Abundances of the Large Magellanic Cloud
    To date, the SDSS-IV APOGEE survey has obtained S/N > 70 spectra for over 2,500 red giant stars distributed across much of the Large Magellanic Cloud (LMC)...
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    APOGEE Chemical Abundances of the Sagittarius Dwarf Galaxy
    The Apache Point Observatory Galactic Evolution Experiment (APOGEE) provides elemental abundances for C, N, O, Na, Mg, Al, Si, P, S, K, Ca, Ti, V, Cr, Mn, Fe...
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    APOGEE Observations of the Center of the Sagittarius dSph Galaxy
    As a system currently in the state of merging with the Milky Way -- and therefore a prototype for substructures that participate in the hierarchical build-up of...
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    APOGEE [C/N] Abundances Across the Milky Way
    The Apache Point Observatory Galactic Evolution Experiment (APOGEE) provides precise carbon and nitrogen abundances for over 100,000 red giant stars across the...