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Milky Way center teeming with black holes



The center of our galaxy is teeming with black holes, akin to a Times Square for strange super gravitational objects discovered by astronomers.

For decades, scientists have theoretically determined that the circles in the center of galaxies, including ours, are very large of stellar black holes, collapsed giant stars, where gravity is so strong that even light does not come out. But until now they had found no evidence in the heart of the Milky Way.

Astronomers thinking about old X-ray observations found evidence of a dozen black holes in the Milky Way's inner circle. And since most black holes can not be detected in this way, they calculate that there are probably thousands of them. They estimate that it could be about 1

0,000, maybe more, a study in the journal Nature said.

"There is a lot of action there," said study author Chuck Hailey, an astrophysicist at Columbia University. "The galactic center is a strange place, so people like to study it."

The stellar black holes are in addition to the already known supermassive black hole called Sagittarius A, which is parked in the middle of the Milky Way

In the rest of the massive Milky Way, scientists have so far discovered only about five dozen black holes, said Hailey.

The newly discovered black holes are within approximately 19.2 trillion miles of the supermassive black hole in the center. So there is still plenty of space and gas in all these black holes. But if you took the equivalent space around the earth, there would be no black holes, not thousands, Hailey said

Earth is in a spiral arm about 3000 light-years from the center of the galaxy. (One light year is 5.9 trillion miles.)

The newly confirmed black holes are about 10 times the size of our Sun, in contrast to the central supermassive black hole, which has a mass of 4 million suns. Also, only the species that are binary are where a black hole has partnered with another star and they emit a large amount of X-rays while the outer layer of the star is sucked into the black hole. These X-rays are observed by astronomers.

If astronomers are more concerned with binary black hole systems, they may then see the relationship between what is visible and what is too weak from a distance. With this ratio, Hailey realizes that although they have discovered only a dozen, there must be 300 to 500 binary black hole systems. But binary black hole systems are probably only 5 percent of all black holes, which means there are really thousands of them, Hailey said.

There are good reasons that the Milky Way's black holes tend to be in the center of the galaxy, he said. First, their mass tends to pull them in the middle. But mostly the center of the galaxy is the perfect "hot house" for the formation of black holes, with lots of dust and gas. He said it was "like a small farm where you have the right conditions to produce and hold a large number of black holes."

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