omega tau - English only

How do scientists uncover phenomena and explain their connections? How do engineers design machines, methods and infrastructure? At omega tau, experts give detailed answers. Over the last ten years, we have produced over 350 episodes in which we dug deeper, until we ran out of questions. Join us on our journey through the world of science and engineering: the closer you look and listen, the more interesting things get.

https://omegataupodcast.net

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episode 320: The Event Horizon Telescope


Guest: Heino Falcke    Host: Markus Voelter    Shownoter: Kolja Dummann

A few months ago, a collaboration called the Event Horizon Telescope presented the first direct image of a black hole; or more specifically, of the radiation created by accelerated particles at its event horizon. The EHT is a Very Large Baseline Interferometer, in which radio telescopes all over the world are computationally connected to obtain resolutions that are not possible with one telescope. In the episode I chat with Heino Falcke, the chair of the EHT science committee, about the science, the telescope, what it took to get it going, and image reconstruction.

Introduction 00:02:47

Heino Falcke | Very Long Baseline Interferometry | Five hundred meter Aperture Spherical Telescope (FAST) | Atacama Large Millimeter/submillimeter Array (ALMA) | Very Large Array (VLA) | Paranal Observatory | BlackHoleCam

The EHT 00:29:54

A book about the EHT | Heinrich Hertz Submillimeter Telescope | Submillimeter Array (SMA) | Greenland Telescope | Thule Air Base | National Science Foundation | Atacama Pathfinder Experiment (APEX)

Image reconstruction 01:05:59

Fourier transform | CLEAN


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 August 16, 2019  1h30m