He pressed Divided
The black hole behaved so unusually that it caught the attention of the research team. This found a surprising answer.
BOSTON – Black holes are mysterious celestial bodies. Its incredibly strong gravity pulls in everything that approaches it and lets nothing escape. Not even light can escape from a black hole, which is why you can’t see mysterious objects. Only with the help of tricks could researchers and telescopes image the shadows of two black holes, the latest in polarized light to reveal the powerful magnetic field at the center of our Milky Way Galaxy.
Now another research team has discovered a black hole that behaves very strangely. Some say that the object located in the center of the galaxy about 800 million light years away experienced a “hiccup”. see. This mountain will suddenly erupt and emit gas clouds every 8.5 days before returning to calm. Research knows a lot about black holes, but the fact that black holes experience “hiccups” is still unknown. What’s behind it?
Black holes experience ‘hiccups’ – researchers claim to have found the explanation
And in learning that In a special magazine Advancement of science published The research team explains its findings. Therefore, ordinary explosions are most likely caused by a second, smaller black hole, which is “buzzing” around the center of the supermassive black hole. Every 8.5 days, this smaller object is expected to eject material from the accretion disk surrounding the massive black hole.
What is a cumulative disk?
In astrophysics, an accretion disk is a disk of gas that orbits an object and transports matter towards its center. In the case of black holes, the matter that “feeds” the black hole is inside them.
Stars can also be surrounded by an accretion disk where planets form over time.
“We think we know a lot about black holes.”
A black hole falls into the accretion disk of another black hole – This new idea challenges previous images of black hole accretion disks. Until now, researchers assumed that the disk was a disk of relatively uniform gas orbiting a black hole. But new research suggests that the accretion disk may contain other black holes or even entire stars.
“We thought we knew a lot about black holes, but this shows that there is much more they can do,” said study author Dheeraj Basham of the Massachusetts Institute of Technology (MIT). “We think there will be more systems like this. We just need to collect more data to find it.”
A black hole 800 million light years away is experiencing a “hiccup”. A team of researchers has found the solution: It orbits a smaller black hole that passes through the accretion disk and releases a cloud of gas in the process. (Artist’s impression) © José Luis Olivares, MIT
Black holes make their host galaxies appear brighter
The “Hiccup” black hole was initially discovered by the ASAS-SN Automated Telescope Network in December 2020, when the black hole was undergoing an explosion that made its host galaxy noticeably brighter. Basham discovered the galaxy and immediately realized that the amount of energy released had a rhythm of 8.5 days. “I was confused about what this meant, because this pattern didn’t match anything we knew about this system,” Basham recalled.
Researchers sought the help of other experts and observed the strange behavior of black holes. It turns out the galaxy it resides in was relatively quiet before December 2020. This month, a third object – possibly a star – must have been very close to the black hole. The object is torn apart by the black hole’s gravity, a process astronomers call “spaghetti.” Material from the torn star ends up in the accretion disk, causing it to shine brighter.
A black hole devours a star and a smaller black hole orbits it
According to the researchers, the black hole devoured the stellar remains over the course of four months, while the second, smaller black hole moved regularly across the accretion disk, ensuring the observed rhythm of 8.5 days. Using simulations, the research team tested this theory and concluded that it must be a new type of David and Goliath system, a small, intermediate-mass black hole orbiting a supermassive black hole.
“This is a very different thing,” Basham said. “This doesn’t fit with everything we know about this system. We see signs of objects entering and passing through the disk at different angles, which challenges the traditional picture of a simple disk of gas around a black hole.” The researcher added: “We believe that there are many such systems.” (unpaid invoice)
2024-03-29 16:35:06
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