What Could a Next Generation Event Horizon Telescope Do?

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The next generation Event Horizon Telescope (ngEHT) will create a virtual telescope the size of Earth by linking telescopes around the world. The ngEHT will capture the sharpest images and videos of black holes. It will also be the first virtual telescope to combine perspectives from the humanities and sciences

The ngEHT will enhance the current global array of radio telescopes that captured the first image of a supermassive black hole. The larger the telescope, the smaller the objects it can observe in the sky. The ngEHT is expected to be completed by the end of the decade. 

The Event Horizon Telescope (EHT) has won several awards, including: 

  • Media Award 
  • Science Image of the Year 2019 
  • #2 Breakthrough of the Year 2019 
  • One of the Top Science Stories of 2019 
  • in 16 Scientific Moments that Defined 2019

The ngEHT will expand the existing Event Horizon Telescope by adding many new antennas. The EHT currently links together 11 radio antennas around the world to study and image the environments around supermassive black holes (SMBHs

Here are some facts about the Event Horizon Telescope (EHT): 

  • The EHT is a network of radio telescopes around the world. 
  • The EHT uses Very Long Baseline Interferometry (VLBI) to detect cosmic signals. 
  • The EHT’s large distance from each other gives it better spatial resolution than a single radio telescope. 
  • The EHT’s angular resolution is comparable to the event horizons of black holes. 
  • The EHT can resolve features with an angular size of less than 20 microarcseconds. 
  • The EHT’s first image of a black hole was taken on April 10, 2019. 
  • The EHT’s first image was of the ring of light produced by matter falling into a black hole at the center of the galaxy M87. 
  • The EHT’s first image was named “Powehi”, which means “embellished dark source of unending creation”. 
  • The EHT’s goals include resolving the “event horizon” of two galactic center black holes.

The Event Horizon Telescope (EHT) is a network of radio telescopes that form a virtual telescope the size of Earth. The EHT uses a method called “very long baseline interferometry” (VLBI) to combine the telescopes into a single observatory. The EHT has observed sources of radio light associated with black holes. 

The next generation Event Horizon Telescope (ngEHT) will create a virtual telescope even larger than the EHT. The ngEHT will link together telescopes around the world to capture sharper images and videos of black holes. The ngEHT will also increase bandwidth, add observing frequencies, and establish new dish sites. 

The EHT includes the following telescopes: 

  • Atacama Large Millimeter Array 
  • Atacama Pathfinder Experiment 
  • Greenland Telescope 
  • Heinrich Hertz Submillimeter Telescope 
  • IRAM 30m telescope 
  • James Clerk Maxwell Telescope 
  • Large Millimeter Telescope 
  • South Pole Telescope

The Event Horizon Telescope (EHT) is a global network of radio telescopes that work together to observe black holes. The EHT’s mission is to image the emission around supermassive black holes. The EHT’s resolution is determined by the distance between the telescopes, not the size of a single telescope

In 2019, the EHT produced the first image of a black hole. The black hole was named “Powehi”, which means “embellished dark source of unending creation”. The image showed a ring, as predicted by general relativity. 

Black holes are so dense that they have a boundary called an event horizon. Anything that crosses the event horizon can never return to the outside universe

The Event Horizon Telescope (EHT) has telescopes in the following countries: 

France, Spain, Greenland, Chile, United States, Mexico, South Pole. 

The EHT is operated by an international collaboration. The collaboration includes: 

  • The Netherlands 
  • Max Planck Institute for Radio Astronomy in Bonn, Germany 
  • Center for Astrophysics 

The EHT project cost nearly $60 million. The U.S. National Science Foundation contributed $28 million.

The EHT uses a method known as “very long baseline interferometry” (VLBI) to yoke multiple telescopes together into a single virtual observatory the size of the planet. That combined power gave it the resolution necessary to take an image of the supermassive black hole in the giant elliptical galaxy M87.(full article source google)

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