Colloq Abstract - Fish
November 8
11:00am Mountain
Vincent Fish (MIT-Haystack)
Imaging Black Holes with the Event Horizon Telescopes
Abstract
In April the Event Horizon Telescope Collaboration released the first image of a black hole in which the ring predicted by general relativity is clearly visible. The EHT is a millimeter-wavelength interferometric array used to image this source, M87, as well as other supermassive black holes and active galactic nuclei. From its humble beginnings as an ad hoc array of a few existing millimeter observatories retrofitted to serve as a non-imaging very long baseline interferometer, the EHT has progressed to become a global imaging array. This presentation will cover the main scientific results of the EHT as well as its technological history and possible future.
