The strange little black hole, the new discovery, the meaning is endless
Author:Astronomy online Time:2022.07.16
Tap the side, look for black holes, and inspire.
Scientists hope that this is one of many similar black holes.
Finding a black hole is not simple, and the farther we are, the farther we are, the more difficult it is to be found.
Because the black hole absorbs all the light around it, it is usually not seen directly through the telescope. However, any black hole will leave "fingerprints": For example, the gravity of black holes will affect the movement of the surrounding celestial bodies, and people can use telescope to study these celestial bodies. Now, tracking this clue, astronomers have found a black hole in a star group outside the galaxy. This black hole is the first black hole outside the galaxy that we discovered by this technology.
Scientists found this black hole with a large telescope (VLT) built in the southern Observatory of Europe. Researchers aimed at the NGC 1850 with great telescopes, a star group that lives in Dagen Ryun in the 160,000 light years of the earth. Here, scientists can see thousands of stars at one time.
The black holes and stars in the NGC 1850 star group described by the artist surround the concept diagram of each other. (Source: ESO/M. Kornmesser)
"Like Sherlock Holmes tracking criminals from the clues, we use telescope to observe every star in the star group, trying to find the evidence of proof of the existence of black holes, instead of seeing them directly." Sara Sarassino said in a statement.
Researchers observe the campaign of stars in the star group to find the basis of the existence of "ghost black holes". A humble star of about five times the quality of the sun is conclusive evidence. The astronomers found the clue of the pan -flowering clue through the campaign of this star: this star is running around the black hole.
The culprit? It is a black hole about 11 times the quality of the sun. It is located in the NGC 1850 star group, only about 100 million years old, almost a baby in the cosmic scale. Astronomers have never found black holes in such a young star group.
The Hubble telescope image of the star group NGC 1850 in Damai Zhelun Nebula. (Source: ESO, NASA/ESA/M. Romaniello))
The study will be published in the Royal Astronomy Society Monthly News. Now, researchers believe that the same technology can help humans find more black holes in other dark corners of the universe, and help us understand how they grow and develop.
"The results displayed here only represent a" wanted criminal ', "Sarassino said." But when you find a criminal, you can find other' criminals' in different stars. ","
The NGC 1850 is the double star and super star group located in the swordfish seat, located in the northwest of Dagelun Nebula [3] [4], and 168,000 light years (51,500 seconds gap). [Need to quote] It was discovered by Scottish astronomer James Dunlop in 1826.
This is an unusual star group system, because the main distribution of stars is similar to the spherical star group, but it is different from the ball -shaped star group in the galaxy. It consists of young stars. The only celestial body in the Milky Way is Westerlund 1. [5] The appearance of its main star group is a ball -shaped star group with age of 400 to 600 million years. The second is a more loose sub -star group with age of 3.4 to 5.2 million years, and [4] is located in the west in the west of the main star group. [6] There are signs that there are interactions between the two star groups. The larger part is irregular and there is a tail pointing to the northwest. [3]
By: rahul rao
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