Due to interstellar gas a black hole can be seen.
NASA has created an image composed almost entirely of black holes visible in the x-ray spectrum.
This is the result of the work of the project Deep Field South Survey – the deepest x-ray studies of our Universe, which was conducted by the Chandra Observatory during the 12 weeks.
Most of these fires – about 70 percent – are in fact supermassive black holes. That is how they are seen in x-rays due to the interstellar gas, heated with approach to the event horizon of a black hole. Because black holes themselves do not emit any light.
Researchers believe that through such observation you can find out how black holes are formed, and this, in turn, can tell the secrets of the formation of the Universe. Astrophysicists came to the conclusion that in the early development of the Universe hole had a very large mass and grew independently without absorbing other substances.
“Locking x-rays from these distant galaxies, we learn more about the formation and evolution of stellar mass and supermassive black holes in the early Universe,” – said one of the researchers, Fabio Vito from the University of Pennsylvania.
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