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Researchers have found a new way to measure vacuum in a pair of supermassive black holes merging

The first photograph of a black hole – a fiery ring of light surrounding a black hole of emptiness – shocked the world three years ago. The Event Horizon Telescope, a global network of synchronized radio sources that serve as a large telescope, focuses on the image of a black hole in the middle of the galaxy Messier 87. Now, two Columbia University researchers have found a way to examine a vacuum that is more convenient. With this new development, astronomers will be able to study black holes smaller than Messier 87 in more distant galaxies.

There are only two criteria for this approach. To get started, you need to have a pair that incorporates Super Massive Black Holes. Second, the couple should be approached from an almost side-on perspective. From that time on, one should be able to see the bright light as a black hole passes in front of another. The luminous circle of a distant black hole is magnified by a black hole closest to the observer, a phenomenon known as gravitational lensing.

The lensing effect is well known, but the researchers found a hidden signal in this case: a distinct dip in brightness that matched the shadow of the black hole in the background. Depending on how enormous the black holes are and how closely their orbits are connected, this slight blur can last anywhere from a few hours to a few days.

The study was published in the journal Journal Physical Review d.

Jordi DeVolar, post-doctoral fellow and first author of the Flatiron Institute Center for Computational Astrophysics and Studies in Columbia Said The high-resolution image of the M87 black holes required considerable effort over the years and dozens of scientists. That method only works for two and possibly larger black holes in the middle of the M87, such as the Milky Way.

Davelar said their method would be to measure the brightness of black holes over time rather than fixing each object spatially.

Jolton Hyman, co – author of the study, described the shadow of a black hole, revealing the size of a black hole, the shape of space-time around it, and how matter falls into a black hole on its horizon. That dark area. Hyman is a professor of physics at Columbia.

After discovering a suspicious pair of supermassive black holes at the heart of a distant galaxy in the early universe, researchers became interested in illuminating supermassive black holes. NASA’s Kepler space telescope is looking for minor brightness dips that indicate a planet is orbiting in front of its home star. Instead, according to Hyman and his colleagues, Kepler discovered flames from a pair of merging black holes.

They named the distant galaxy “Spikey” for the luminosity spikes caused by the lensing effect on each total rotation as its potential black holes expand to each other. Hyman and Davelar built a model to learn more about inflammation.

Researchers are now looking for more telescope data to confirm the dip in Kepler data and to prove that Spikey is home to a pair of fused black holes. If everything is checked, this procedure will be used to confirm 150 or more other suspected merged supermassive black hole pairs found so far.


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