David G. Sandler

TL;DR: In this article, a neural network was used for 2.2-μm wavelength imaging at the multiple-telescope array at the Multiple Mirror Telescope (MMT) in Arizona, with a resolution of 0.06 arcsec.

TL;DR: In this article, a specific design concept for recovery of diffraction-limited images in the 1.6- and 2.2-μm atmospheric windows, yielding 0.05-arcsec resolution for an 8m telescope, was described.

TL;DR: A neural network is applied to in- and out-of-focus images of Vega obtained with the 1.5-m single-mirror telescope at the Starfire Optical Range of the Air Force Phillips Laboratory near Albuquerque, New Mexico, and the experimental results agree well with phase reconstructions obtained simultaneously with a conventional wave-front sensor.

TL;DR: A brown dwarf star having only 20-50 times the mass of Jupiter is located below and to the left of the bright star GL 229 in this image from the Hubble Space Telescope at the 19 light year distance to GL 229, the 77-arcsec separation between the star and the brown dwarf corresponds to roughly the separation between Pluto and the Sun in our Solar System as discussed by the authors.

TL;DR: The static shearing interferometers as discussed by the authors are prototype wave-front sensors for use with laser guide stars at large values of D/r0 and can be implemented with a variety of shear lengths to accommodate different atmospheric conditions.