Hear the sound of the black hole singing

In places you can not hear the black hole screaming, but see that you can hear him singing.

In 2003 astrophysicists working with NASA’s orbiting Chandra X-ray Observatory found a pattern of ripples in the X-ray glow of a large mass of galaxies in the constellation Perseus. They are high-velocity waves – that is to say, sound waves – 30,000 light-years across and erupt from the thin, ultrahot gas that suffuses galaxy clusters. They are caused by a temporary explosion from a massive black hole at the center of the mass, which is 250 million light-years away and contains thousands of galaxies.

With an oscillation period of 10 million years, the sound wave is equivalent to B-flat 57 octaves below average C, a sound that a black hole has clearly held for two thousand years ago. Astronomers think this wave acts as a stop on star formation, causing the gas in the mass to heat up to form new stars.

The Chandra astronomers recently “sonified” the ripples by speeding the signal to 57 or 58 octaves above their original sound, boosting their frequency quadrillions of time so that they could be heard by the human ear. . As a result, we can now hear intergalactic music singing.

From the new cosmic headphones, Perseus’ black hole makes eerie moans and rumbles that alert the listener to the galumphing tones marked by an alien radio signal that Jodie Foster hears through headphones live into the science fiction film “Contact.”

As part of the work continuing to “sonify” the universe, NASA has also announced similar sounds of joints in a plane of energy fired by a large black hole at the center of a humongous galaxy called M87. These sounds reach us over 53.5 million light-years as a perfect complement to orchestral music.

Another sonification project was carried out by a team led by Erin Kara, an astrophysicist at the Massachusetts Institute of Technology, as part of an effort to use X-ray light. cracked to form a round black hole, as many bats use. sound catching mosquitoes.

All this is the development of “Black Hole Week,” the annual NASA social media extravaganza, May 2-6. As it turns out this week gave the big announcement on May 12, when scientists with the Event Horizon Telescope, which in 2019 created the first image of the black hole, are announcing them the latest results.

Black holes, as determined by Einstein’s theory of relativity, are objects with very strong gravity that, in the absence of light, sound, can escape. Paradoxically, they can also be the most brilliant thing in the universe. Before all matter disappears permanently into the black hole, scientists think, it would have been rapidly approaching near-light speed by the hole gravitational field and heated, swirling, to millions degrees. This will cause X-ray flashes, creating star reflections and squeezing powerful planes and objects all over the place like too much toothpaste coming out of the tube.

In one case there is always a binary system with stars and stolen items by dicts, who see a donet of doom – which sporadically causes x-ray outbursts.

Using data from NASA devices called the Neutron Star Interior Composition Explorer – NICER – a team led by Jingyi Wang, an MIT graduate, to search for sound or think about X-ray blasts. The time lag of the old X-ray blasts and their echoes and distortions caused by their proximity to the weird gravity of the black hole provides insight into the evolution of heavy bursts.

Meanwhile, Dr. Kara has worked with academics and music professionals to convert X-ray reflections into sound. In some simulations of this process, he said, the flashes go all the way around the black hole, creating changes in their wavelengths before impact.

Dr. Kara said in an email.

Take Your Heart Out, Pink Floyd.

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