"Milli-arcsecond Imaging with the CHARA Interferometer"

John Monnier (U. Michigan)

Under the best conditions, telescope diffraction limits the angular resolution for astronomical imaging. Using interferometry, we can coherently combine light from widely-separated telescopes to overcome the single-telescope diffraction limit to boost our imaging resolution by orders of magnitude. I will review recent technical advances combining four telescopes of the CHARA Array on Mt. Wilson, CA, with baselines of 330 meters allowing near-infrared imaging with sub-milli-arcsecond resolution. I will review the first resolved images of main sequence stars besides the Sun and show the first results of imaging interacting binary systems.