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...
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...
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...
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...
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...
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)...
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...