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SUMMARY:Imaging Black Holes from ground and space - Prof Heino Falcke (Rad
 boud University Nijmegen)
DTSTART:20260304T161500Z
DTEND:20260304T171500Z
UID:TALK243934@talks.cam.ac.uk
CONTACT:Prof. Eloy de Lera Acedo
DESCRIPTION:In 2019\, the Event Horizon Telescope (EHT) captured the first
 -ever image of a black hole\, observing its dark shadow in the radio galax
 y M87. In 2022\, the black hole at the center of our Milky Way was imaged\
 , validating our predictions made more than two decades ago. This confirme
 d the presence of supermassive black holes at the centers of galaxies and 
 provides strong evidence for the presence of an event horizon. The next st
 ep is to measure the properties of these black holes\, test theories of gr
 avity\, and to understand the physics near the event horizon: Are these bl
 ack holes spinning? What is the structure of accretion flows and jets? Is 
 rotational energy extracted from the black hole to launch plasma jets? Whe
 re and how are particles accelerated that produce the radiations we see? T
 o answer these question we will be engaging in campaigns to produce “col
 or movies” of black holes\, i.e. make dynamic images of black holes and 
 observe them at multiple frequencies. To do this we are developing new ima
 ging algorithms\, new operational models\, and new telescopes. The EHT is 
 expanding further. Funded by an ERC Synergy grant\,“Black Holistic”\, 
 we are now also building the 14m Africa mm-wave telescope (AMT) in Namibia
 \, equipped with multiband receivers for Very Long Baseline Interferometry
  (VLBI) and transients research. In the future space interferometers will 
 improve the results by another order of magnitude and promise even deeper 
 insights into the nature of black holes.
LOCATION:Ray Dolby Auditorium\, Ray Dolby Centre\, Cavendish Laboratory\, 
 JJ Thomson Avenue\, CB3 0US
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