It was discovered that a pair of supermassive black holes that would soon become one were hidden in a nearby galaxy.
two Black Hole Dancing around each other in the center of the galaxy NGC7727, about 89 million light-years away from Earth in the constellations Aquarius.. Scientists say they have never seen a pair so close to each other, not just so close to our planet.
A couple of black holes that merge into one giant black hole 250 million years later have long escaped detection because they somehow emit less X-ray radiation. Regular giveaways indicate the presence of black holes. It was discovered and analyzed by a telescope power couple. Extremely large telescope With the European Southern Observatory (ESO) in Chile Hubble Space Telescope..
Carina Vogel, an astronomer at the Strasbourg Observatory in France and the lead author of the new study, said: “Two supermassive black holes that are so close and less than half the distance of previous record holders. It’s my first time to find it. ” , Said In the statement.
The previous record holder for the closest known black hole couple is 470 million light-years away from Earth, more than five times as far as the newly discovered duo. Due to the close distance of the NGC 7727 pairs, astronomers were able to determine their masses by measuring the masses of the two black holes for the first time. gravity Affects nearby stars.
The larger of the two black holes weighs about 154 million Sun.. A small one that orbits a large companion at a distance of only 1,600 light-years is 6.3 million times larger than our star.
Supermassive black holes are usually in the center of large black holes GalaxyAnd when the two galaxies collide and merge, the black hole also collides.
Scientists say this finding gives a glimpse into the formation of very large supermassive black holes, but also suggests that more black holes and fusion pairs may be lurking in other nearby galaxies. doing.
“Our findings mean that there may be more of these relics of galaxy mergers, and they still contain many hidden giant black holes waiting to be discovered. Maybe, “Voggel said. “It has the potential to increase the total number of supermassive black holes known in the local universe by 30%.”
Scientists hope that the completion of the ESO will enhance the search for supermassive black holes and black hole pairs in the coming years. Extremely large telescope (ELT) In northern Chile, currently scheduled for 2024.
“With harmony [High Angular Resolution Monolithic Optical and Near-infrared Integral field spectrograph] ELT’s equipment will be able to make such detections much farther than is currently possible, “discovery co-author ESO astronomer Steffen Mieske said in a statement.
The discovery was explained on paper It was published in the journal Astronomy & Astrophysics on November 30th.
This pair of fused black holes is the closest we have ever found to Earth.
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