Afternoon burp. Black hole discovered whose behavior baffled scientists
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A black hole swallowed a small star 3 years ago, but only recently ejected into space a stream of matter left after this event. But this should not have happened.
Three years ago, astronomers at the Harvard-Smithsonian Center for Astrophysics, using ground-based radio telescopes, saw a black hole 665 million light-years away swallowing a small star. But this event did not attract much attention of scientists. But recently they again paid attention to this black hole and saw that it throws out into space a stream of matter left after the “cosmic meal”. But this cannot happen after such a long period of time, and scientists are trying to understand how this is possible, writes the Daily Mail.
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Scientists compared their discovery, when a black hole ejected some of the material after swallowing a star three years after this event, with a human burp in the afternoon.
“Normally, when a star is completely swallowed by a black hole, this material heats up, swirls around the black hole and produces a beam of radiation that we can see. Some of the star’s material that the black hole did not swallow can be thrown back into space. But this happens immediately after absorption, and not after 3 years. We still do not understand how this happened. We have not seen this yet, “says Yvette Sendes from the Harvard-Smithsonian Center for Astrophysics.
When any star comes too close to a black hole, the latter begins to pull all of its matter out of the star. As a result, the star stretches and resembles spaghetti, which is why scientists call this process spaghettification. But when the absorption process is completed, then part of the stellar matter can fly into space, but this happens almost immediately.
3 years ago, scientists did not pay attention to a seemingly ordinary cosmic event, because a black hole swallowed a star, which is 10 times lighter than the sun. But years later, scientists returned to the observation of this black hole and found that it was spewing material that was once absorbed. The fact that these are the remains of the same star, scientists found out by looking at all the archival data, which showed that during this time no other star became the dinner of this black hole.
Scientists still do not know what caused such a delay in the release of the substance.
“It is similar to the after-dinner burp in humans, which occurs in humans some time after eating. It is very surprising,” says Sendes.
Another mystery that scientists cannot yet explain is that the ejected stream of matter moves at a speed equivalent to half the speed of light. But in general this speed does not exceed 10% of the speed of light.
Now scientists have directed everything their efforts to find out how unique this event is and why it happened such a long period of time after the absorption of a star by a black hole.
As for the speed of light, scientists, as Focus< /em>, have discovered a stream of matter in space that flies at several times the speed of light, although this is impossible. But soon the astronomers found out that there were no violations of the laws of physics and explained why.