Space

What would a neutron star fusion "close" to the Earth look like?

If two dense neutron stars collidedrelatively close to Earth, the resulting kilo would shine day and night with the brightness of the moon compressed into a small dot. “At night it would be the brightest point in the sky,” says physicist Imre Bartos of the University of Florida at Gainesville, who described what this bright explosion would look like in a study published May 7 at arXiv.org.

The first such burst of light and energyparticles, seen in real time, fell into focus in 2017, after physicists discovered gravitational waves from a collision of a neutron star. This discovery, which occurred 130 million light-years away from us and was visible only through telescopes, proved that the kilon sprays the Universe with heavy elements: gold, silver, platinum and uranium.

What does a kilon explosion from Earth look like

Although it is unlikely that a kilon will appearnearby in the near future, one of them appeared at a distance of about 1000 light years from the place where the Earth is now located. True, it was 80 million years before the Solar System was formed. This event populated the solar system with the elements that make up our planets today.

"We wanted to visualize what that meansdistance, ”says Bartos. They changed the spectrum of light emitted by kilon 2017, as if it appeared only 1000 light years from us. At first it would have been bluish, but would turn red within a few days — fragments of a kilon star would manifest fading bluish waves of light. About a week later, the kilon will not.

Astrophysicists estimate that kilon is bornso close to Earth only once every 100 million years. Therefore, we are unlikely to see this. But some of them could appear in 4.5 billion years of earthly history. And then for all life on the planet death came. If a kilon - like 2017 kilon - released a gamma ray burst toward the Earth, this stream of high energy particles would destroy life on Earth.

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