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One of the main theories about the origins of black holes suggests that they come from gigantic supernova explosions. New research suggests that these explosions are so powerful that they literally give blows in the black holes around the galaxy.
If that were true, it would mean that throughout the galaxy and even in the wider universe, there are probably millions of black holes bouncing at incredibly high speeds of 70 km / s ( 43 miles per second).
"This work basically talks about the first evidence of observation that you can actually see black holes moving at high speeds in the galaxy and associate them with the kick received by the black hole system received at birth." , Astronomer Pikky Atri of Curtin University and the International Center for Research in Radioastronomy (ICRAR) said.
The study focused on 16 black holes in star binary systems, because the gravitational force of a black hole is so strong that it can not detect electromagnetic radiation that emanates from it unless it is caught in the process to feed, like his binary partner, for example.
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As the black hole consumes its stellar brother, the swallowed material emits powerful X-rays and radio waves, giving Earth scientists a chance to find them.
With the ability to spot black holes, they began to trace their movements by reversing their velocities to understand where and how they originated, either collapsing on themselves without a supernova explosion, or with a huge drift in the same way. What happens when neutron stars die?
The neutron stars experience what is known as a Blaauw kick or a natal kick, which makes them fly through the stars. The researchers wanted to determine if the same thing could be true for black holes. They found that 75% of the black holes studied received a quick kick from birth.
With about 10 million black holes in the Milky Way, 7.5 million black holes ricochet through the stars.
However, we must not fear that the Earth will be struck in the face by a wandering cosmic free kick.
"The nearest black hole, we think it's two kiloparsecs [6,523 light-years], " Atri said.
"It's very, very far. There is no chance that such black holes will suck us so soon. "
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