Imaging a Black Hole with the Event Horizon Telescope
Seminar | April 19 | 11 a.m.-12 p.m. | Sutardja Dai Hall, Banatao Auditorium
Dr. Katie Bouman
In this talk, Dr. Katie Bouman will present the methods and procedures used to produce the first black hole image results from the Event Horizon Telescope. It is theorized that a black hole will leave a "shadow" on a background of hot gas. Taking a picture of this black hole shadow could help to address a number of important scientific questions, both on the nature of black holes and the validity of general relativity. Unfortunately, due to its small size, traditional imaging approaches require an Earth-sized radio telescope. In this talk, Dr. Bouman discuss techniques we have developed to photograph a black hole using the Event Horizon Telescope, a network of telescopes scattered across the globe. Imaging a black holes structure with this computational telescope requires us to reconstruct images from sparse measurements, heavily corrupted by atmospheric error.
Katie Bouman is starting as an assistant professor in the Computing and Mathematical Sciences Department at the California Institute of Technology. She has been a postdoctoral fellow with the Event Horizon Telescope in the Harvard-Smithsonian Center for Astrophysics. She received her Ph.D. in the Computer Science and Artificial Intelligence Laboratory (CSAIL) at MIT in EECS. Before going to MIT, she received her bachelor's degree in Electrical Engineering from the University of Michigan. The focus of her research is on using emerging computational methods to push the boundaries of interdisciplinary imaging.