A black hole is a region of
- It measures 40 billion km across , three million times the size of the Earth. The scientists have called it “a monster”. It was captured by the Event Horizon Telescope (EHT), a network of eight linked telescopes.
- The black hole was found in a galaxy called M87.
- Prof Heino Falcke of Radboud University in the Netherlands said:
“What we see is larger than the size of our entire Solar System”
“It has a mass 6.5 billion times that of the Sun. And it is one of the heaviest black holes that we think exists. It is an absolute monster, the heavyweight champion of black holes in the Universe.”
- The image showcases a bright “ring of fire”, as Prof Falcke calls it, surrounding a complete circular dark hole.
- The bright halo is caused by superheated gas falling into the hole.
- The light is brighter than all the billions of other stars in the galaxy combined – which is why it can be seen at such distance from Earth.
- Dr. Katie Bouman had developed a series of algorithms that converted telescopic data into the historic photo shared by the world’s media.
- No single telescope is completely efficient to capture the black hole, so a network of eight was set up, a technique called interferometry.
- It was on this algorithm that the first image of the black hole was captured effectively.
- “Watching in disbelief as the first image I ever made of a black hole was in the process of being
reconstructed“ she wrote in the caption to the Facebook post.
- Professor Falke was the first to
realisethat a certain type of radio emission would be generated close to and all around the black hole, which would be powerful enough to be detected by telescopes on Earth.
- He coaxed the European Research Council to fund his project, whose investment is also noteworthy towards the successful picturing of the black hole.