References Nevs Netvork published on November 24 the British media reported that behind the dust and gas disk that make up the Milky Way, there is a galaxy that is different from other galaxies that people have seen before. Or at least that's what some astronomers say – but another researcher examined their findings.
According to the British "Nev Scientist" published on November 16, newly discovered dwarf galaxies are one third of the size of the Milky Way. It is located in Constellation of Antria, 450 million light-years from Earth. It's called "Antelia-2" – or "Ante-2".
Researcher Gabriel Torealva said: "It's similar to some galaxies around the Milky Way, we know they have been for many years, but it's 10 times greater than those galaxies, and the light is distributed in the sky. The larger area makes it very fragmented and hence is harder to discover. "
According to reports, he and his team captured "Ante-2" with a bright star called RR Lile variable, and the bright stars of the RR Lile Variables vibrate, refine and dim for a long time. As you know, almost every small galaxy that orbits the Milky Way has at least one such lighthouse that works synchronized with surrounding stars.
According to the report, Torre Iarva and his associates used four stars RR Lile who watched Gaia satellite to track the position and movement of surrounding stars and map the Milky Way and its surroundings. The team discovered that a set of sonic pulsating stars moved together.
The report said that at that time they measured the brightness of 100 red giant stars around four RR stars and found that they were moving at the same speed, which means they belong to the same galaxy. But these stars also point out that the galaxies in which they are strange are.
Based on the distance, the research team concluded that "Ante-2" is enormous, which spans about 9,500 light-years. But for such large galaxies, it's extremely dark. This is because the diffusion range is even 100 times greater than the so-called. Hyper-diffusion galaxies. This means that the surface illumination "Ante-2" is the smallest of the well-known star systems.
Torre Ialva believes that this may be a consequence of the dark matter of the Milky Way. It can spread evenly to "Ante-2" instead of concentrating in the center like most galaxies. This can allow "Ante-2" to maintain its huge volume in case of loss of mass due to the gravitational influence of the Milky Way.
However, Gisela Clementini of the Italian National Institute of Astrophysics said that before we know exactly how unusual characteristics of "Ante-2", some issues remain to be answered. She studied the RR stars watching Gaia satellites and said there was an error in the formula used by the Torreialave team to calculate the distance from "Ante-2".
When she noticed this, she asked to work with associates in Bologna and Naples, who all thought that there was a problem with distance measurement. This is a serious problem because the characteristics of this galaxy are so unusual only when the galaxy is far from us, as Estai's team estimates.
Clementini said she reminded the team that they would pay attention to this issue and agreed that they had to be re-analyzed. She said: "They found something, but at this stage, unless we can verify the account, they can not bet in any kind of system assets."
Climentini said that the star of the RR Lile may not belong to the galaxy, but may be in front of the galaxy. If this is the case, then the research team found "Ante-2" pure luck. If the distance of the galaxy is much farther than we think, then its dimensions will be more extreme. But if it's closer, it looks more like a mere dwarf galaxy.
Torre Iarva said that the error in their distance formula made the old RR Lair about 260,000 light-years from Earth instead of the first 424,000 light-years. But they used two more methods to confirm the distance of other stars in the "Ante-2". He said that a galaxy like "Ante-2" should have hundreds of such variable stars, and this group is closest. He also said that the new budgets did not change the wonderful nature of "Ante-2".
Alan McConaughei of the University of Victoria in Canada said: "To make the unusual part of the galaxy look less unusual, its distance must be twice as high. If you change it by 10% or 20%, it is still a very strange type of object."
He said that for a long time we know that the "missing" galaxies are hidden behind the gas and dust of our Milky Way. There is also a small number of equally large and widespread galaxies – such as Crater 2 and Andromeda 19. He said: "Whether it's some of the extreme objects, or the tip of the iceberg of a new kind of galaxy, that's what we urgently need to know."
The report says that if the galaxy is more diverse than it used to be, if the galaxy is surrounded by fierce patulous galaxies, then people may have to translate the understanding that dark matter is spreading all over the universe and its star collecting mechanism. (Compile / Hu Vei)
(Original title: The scientists say the galaxy hides a huge spiritual galaxy on the edge of the Milky Way. British media: there is still no mystery)