Since many generations the standard model of the origin and evolution of the universe has been the frame of reference for many scientists. But it turns out that when it comes to mapping the Dwarf Galaxies; there may be no place in the universe.
According to a study to be published in a future issue of Monthly Notices of the Royal Astronomical Society, Astrophysicists have revealed that the accepted model of universe is flawed as the dwarf galaxies that orbit the Milky Way and the Andromeda galaxies defy the accepted model of galaxy formation. This study was carried out by an international team of 14 astrophysicists.
David Merritt, one of the key researchers and co-author said that, “The existing model predicts that dwarf galaxies should form inside small clumps of dark matter and that these clumps should be distributed randomly about their parent galaxy. But what is observed is very different. The dwarf galaxies belonging to the Milky Way and Andromeda are seen to be orbiting in huge, thin disk-like structures”, in a news release. He also adds that “What is observed is very different; the dwarf galaxies belonging to the Milky Way and Andromeda are seen to be orbiting in huge, thin disk-like structures.”
Recently three papers were released, by different groups supporting the commonly accepted model of universe formation by showing in various calculations that structures similar to the orbiting dwarf galaxies are possible given specific conditions. According to the standard paradigm, 23 percent of the mass of the universe is shaped by invisible particles known as dark matter. But the Astrophysicists of the new study have argued that there are serious issues with the idea that satellite galaxies support to standard mode.
They replicated the earlier papers, using the same data and cosmological simulation, and came up with a conclusion that there are much lower probabilities that dwarf galaxies would be seen in the Milky Way and the Andromeda galaxy.
Merritt further clarified that, ‘our conclusion tends to favor an alternate, and much older, ‘tidal’ model: that the satellites were pulled out from another galaxy when it interacted with the Local Group galaxies in the distant past’. “When you have a clear contradiction like this, you ought to focus on it,” Merritt said. “This is how progress in science is made.” The study is to be published in Monthly Notices of the Royal Astronomical Society which will reveal the in depth details of analysis done by Merritt and his team.