Astronomers see black hole swallow neutron star for first time


Related video above: How heavy is a distant neutron star? Scientists think they know how to talk about a heavy snack. For the first time, astronomers have seen a black hole swallow a neutron star, the densest object in the universe, all in a fraction of a second. Ten days later, they saw the same thing on the other side of the universe. Either way, a neutron star – a teaspoon of which would weigh a billion tonnes – orbit closer and closer to that ultimate point of no return, a black hole, until they crash into the ground. finally together and that the neutron star disappears in a goblet. Astronomers have witnessed the last 500 orbits before neutron stars were swallowed, a process that took much less than a minute and briefly generated as much energy as all the visible light in the observable universe. “said study co-author Patrick Brady, an astrophysicist at the University of Wisconsin in Milwaukee. The black hole” gets a nice dinner from a neutron star and just makes itself a little more massive. as first theorized by Albert Einstein. They each came from over a billion light years away. The waves were detected in January 2020, but the study analyzing and interpreting the data by more than 100 scientists has was published Tuesday in Astrophysical Journal Letters. As astronomers saw gravitational waves from two black holes collide and two neutron stars collide, this is the first time they have seen one of each crush together. Neutron stars are massive star corpses, which is left over after a large star dies in a supernova explosion. They are so dense that they have about 1.5 to twice the mass of our sun, but condensed to about 10 kilometers wide, Brady said. Some black holes, known as stellar black holes, are created when an even larger star collapses on itself, creating something with such powerful gravity that even light cannot escape. Scientists think there should be a lot of these pairs of neutron stars and black holes, but they haven’t found one in our own galaxy yet. “It’s very cool,” said Johns Hopkins University astrophysicist Marc Kamionkowski, who was not with the research. He said it would help astronomers predict the abundance of these pairings.

Related video above: How heavy is a distant neutron star? Scientists think they know

Talk about a heavy snack. For the first time, astronomers have seen a black hole swallow a neutron star, the densest object in the universe, all in a fraction of a second.

Ten days later, they saw the same thing, on the other side of the universe. Either way, a neutron star – a teaspoon of which would weigh a billion tonnes – orbit closer and closer to that ultimate point of no return, a black hole, until they crash into the ground. finally together and that the neutron star disappears in a goblet.

Astronomers have witnessed the last 500 orbits before neutron stars were swallowed, a process that took much less than a minute and briefly generated as much energy as all the visible light in the observable universe.

“It was just a big, fast (gulp) gone,” said study co-author Patrick Brady, an astrophysicist at the University of Wisconsin in Milwaukee. The black hole “gets a nice neutron star dinner and just gets a little bigger.”

Collision energy bursts were discovered when detectors on Earth spotted merger gravitational waves, cosmic energy ripples hovering through space and time, as Albert Einstein first theorized. They each came from over a billion light years away. The waves were detected in January 2020, but the study analyzing and interpreting the data by more than 100 scientists was published Tuesday in Astrophysical Journal Letters.

As astronomers saw gravitational waves from two black holes collide and two neutron stars collide, this was the first time they had seen one of each crash together.

Neutron stars are the corpses of massive stars, which is left over after a large star dies in a supernova explosion. They’re so dense they’re about 1.5 to twice the mass of our sun, but condensed about 10 miles wide, Brady said. Some black holes, known as stellar black holes, are created when an even larger star collapses on itself, creating something with such powerful gravity that even light cannot escape.

Scientists think there should be a lot of these pairs of neutron stars and black holes, but they haven’t found one in our own galaxy yet.

“It’s very cool,” said Johns Hopkins University astrophysicist Marc Kamionkowski, who was not with the research. He said it would help astronomers predict the abundance of these pairings.


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