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Scientists first measured the diameter of the “donut” of black holes

Ученые впервые измерили диаметр "бублика" черных дырThey were compact and hot.

NASA scientists together with German colleagues measured the diameter of the “doughnut” of dust surrounding black holes. Astrophysicists have found that he was leaner, and his temperature is actually much higher than previously thought.

Lindsay fuller, a participant of the study from the University of Texas (San Antonio, USA), said that it was used by a unique infrared telescope SOFIA, mounted on a Boeing-747. To obtain the maximum possible precision shots, he rose to a height of 13 thousand kilometers.

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Scientists from space agencies, NASA (USA) and DLR (Germany) tried to find out whether the same is arranged black holes in different galaxies. To do this, they measured the diameter of the “donut” of gas and dust that surrounds them. This dense layer of material serves as a shield of the black hole, which absorbs emitted its jets (small bunch of gas and dust that hole “shoots” from itself at the speed of light). The jets in the form of light and x-rays emit huge amounts of energy.

The observations of researchers showed that the diameter of the “donut” of a black hole by almost a third less than the theoretical calculations, and he has a very high temperature.

This could not be set earlier, because the amount of infrared radiation absorbed water molecules in the atmosphere. This observation showed, says fuller, that the views of scientists about black holes and their “bagels” a bit wrong, and astrophysicists still have several stages of research.

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