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In March of last year, equipment aboard the International Space Station (ISS) captured a rare phenomenon: an extremely brilliant explosion: 10,000 light-years away from Earth. These were bursts of energy from a black hole devouring gas and dust from a nearby star.
Scientists have now detected "echoes" of this explosion, which they believe to be a clue to the evolution of black holes during an explosion. The findings were released Wednesday at a meeting of the American Astronomical Society in Seattle, United States and will be published this Thursday 10 in the journal issue . Nature .
"This shiny black hole appeared on the scene and was almost completely cleared, so we have a very clear vision of what was happening," said Jack Steiner, a researcher at the Kavli Institute of Medicine. Astrophysics and Space Research in Mbadachusetts (MIT).
The team reports that because the black hole consumes huge amounts of stellar material, its crown – the highly energetic halo of electrons surrounding a black hole – shrinks considerably after an initial stretch of about 100 km at 10 km, in a little more than a month.
"It's the first time we see this type of evidence that the crown weakens during this particular phase of the blast," Steiner said. The black hole detected on March 11th was called MAXI J1820 + 070.
What are black holes
A black hole is a region of space where the force of attraction of the gravity is such that the light is not able to escape. The high gravity occurs because the material has been compressed into a tiny space. This compression can occur at the end of a star's life. Some black holes result from the collapse of stars.
As no light can escape, black holes are invisible. However, space telescopes with special instruments can help you find black holes. They can observe the behavior of materials and stars very close to black holes.
Black holes can be as small as a single atom, but with the mbad of a large mountain. It is believed that the primordial black holes formed at the beginning of the universe, just after the Big Bang.
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