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Observing---and Imaging---Active Galactic Nuclei with the Event Horizon Telescope

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arxiv 1607.03034 v1 pith:7ODDBOXX submitted 2016-07-11 astro-ph.IM astro-ph.GAastro-ph.HE

Observing---and Imaging---Active Galactic Nuclei with the Event Horizon Telescope

Vincent L. Fish , Kazunori Akiyama , Katherine L. Bouman , Andrew A. Chael , Michael D. Johnson , Sheperd S. Doeleman , Lindy Blackburn , John F. C. Wardle
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William T. Freeman the Event Horizon Telescope Collaboration
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classification astro-ph.IM astro-ph.GAastro-ph.HE
keywords dataeventhorizonimageothersourcestelescopealgorithms
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Originally developed to image the shadow region of the central black hole in Sagittarius A* and in the nearby galaxy M87, the Event Horizon Telescope (EHT) provides deep, very high angular resolution data on other AGN sources too. The challenges of working with EHT data have spurred the development of new image reconstruction algorithms. This work briefly reviews the status of the EHT and its utility for observing AGN sources, with emphasis on novel imaging techniques that offer the promise of better reconstructions at 1.3 mm and other wavelengths.

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