NASA has published the "sounds" of a black hole: anyone can listen to them

The black hole at the center of the Perseus galaxy cluster is emitting pressure waves that appear to cause ripples in the hot gas.

clusters - this activity can be translated into notes. But they will be about 57 octaves below average. Therefore, a person will not be able to hear it.

Now the authors of the new work have amplified this sound and added notes to it so that people can listen to it.

This ultrasonic treatment is different from any otheranother one done earlier because the authors reexamined the actual sound waves detected in data from NASA's Chandra X-ray Observatory. 

There is a popular misconception that in spaceno sound. It has to do with the fact that most of space is essentially a vacuum through which sound does not travel. On the other hand, galaxy clusters contain a large amount of gas that envelops hundreds or even thousands of galaxies within it, providing a medium for sound waves to propagate.

In this new ultrasound study of the Perseus galaxy cluster, the authors used sound waves previously identified by astronomers. They were taken out and made so that a person could hear them.

Sound waves extracted in radialdirections, that is, outward from the center. Then the signals were once again synthesized in the range of human hearing - for this, the authors increased their height by 57 and 58 octaves.

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