“In space, no one will hear you screaming.” All who have seen alien, Known. Because in the vacuum of space, no sound can propagate. in the void. But in a group of galaxies surrounded by gas, there is something else. And now NASA researchers offer us something incredible. Let’s hear… the black hole song!
Sounds from other black holes
This is true when the studied space is empty. But a galaxy cluster contains hundreds of galaxies. Large amounts of gas surround them. This allows sound waves to propagate. And these are the waves that astronomers here extracted to make them audible by increasingSeveral million times.
Researchers are also working on sonicating another black hole. Perhaps the most famous of them, because it is the M87 which Obtained fromevent horizon telescope The EHT was revealed in 2019. However, astronomers do not rely on this image to extract sounds from it. But on the others, referred to by Talk and by the large millimeter/millimeter grid of the Atacama (Alma, Chile). data for Different that researchers match with a different set of vocal tones. Lowest for waves from Alma, midtones for optical data from Hubble and higher tones for X-rays from Chandra.
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