Black hole accretion disk in Messier 87 (EHT) galaxy
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Five days ago, we were able to see a photo of the black hole accretion disk in the Messier 87 galaxy, which is in the constellation Virgo A.
Actually, the photo itself
This, by the way, suggests that the theory of black holes was correct. Thanks to EHT (Event Horizon Telescope) theory has become a reality.
The mass of this black hole in 65,5 billion times the mass of our Sun.
Black hole outlines
How does a black hole change during the week
EHT is an international collaboration to create a network of radio telescopes, combining data from several interferometry stations with a very long baseline (VLBI) over the entire Earth.
This method of linking radio transmissions across the globe to create an interferometer the size of the Earth was used to measure the size of the radiation regions of two supermassive black holes with the largest visible event horizons: Sagittarius A * in the center of our galaxy (Milky Way) and Messier 87 in the center of the Virgo A galaxy .
Sagittarius A * (26 thousand light years from Earth)
Messier 87 (55 million light years from Earth)
A very important role was played by Dr. Kathy Buman, who created the algorithm, thanks to which we can see the very photo of the black hole's accretion disk.
Dr. Kathy Buman
Here is her performance with translation (subtitles):
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