In astronomy from the University of Cambridge team found about nine new rotating around the Milky Way dwarf galaxies, called the discovery of the largest-ever one-time number. This finding may help us unravel the secret behind dark matter, dark matter is these polymeric entire galaxy.
Satellite maps rotate around the galaxy, the underlying background image through infrared processing.
Beijing March 20, according to foreign media reports, recently, astronomy team from the University of Cambridge, look around the Milky Way discovered nine new rotating dwarf galaxies, called the largest ever found in a one-time number. This finding may help us unravel the secret behind dark matter, dark matter is these polymeric entire galaxy.
Following the 2005 and 2006 over the southern hemisphere dozens of dwarf galaxies discovered decades later, the new dwarf galaxies first appeared in the southern hemisphere over the size of the Magellanic Cloud (Large and Small Magellanic Cloud) nearby, which is a prestigious track on the galaxy’s largest dwarf galaxies.
Another University of Cambridge Institute of Astronomy joint US Department of Energy’s Fermi National Accelerator Laboratory, called “Dark Energy Survey” (Dark Energy Survey) research team to publish this discovery. They use are from dark energy surveys and opening-up imaging data.
These dwarf galaxies than 1 billion times fainter galaxy, the Milky Way is only one millionth the size.Probably a recent 95,000 light years from Earth, the farthest in more than 100 million light-years away.
“In such a small piece of the sky, I found that so many satellites are not thought of,” the Institute of Astronomy at Cambridge University, Dr. Sergey Denisov Copperfield says he could not believe his eyes.
Dwarf galaxies are the smallest galaxies observed structure is very weak. Compared to the hundreds of billions of stars in the Milky Way, the number of stars in dwarf galaxies is only 5000 or so. In the standard cosmological model prediction, probably hundreds of dwarf galaxies around the Milky Way rotation. Even if these dwarf galaxies of the Milky Way in the backyard, but due to low brightness and size is too small, the difficulties they found unusual.
According to the findings of the research team at Cambridge University, has three certainly dwarf galaxy, another six dwarf galaxies may be globular clusters may be – and dwarf galaxies have a similar object visible property, except that the globular clusters and was not able to rely on the formation of dark matter.
Fermilab Doric Alex Wagner (Alex Drlica-Wagner) is one of the leaders of the investigation and analysis of dark energy, he said, “These dwarf galaxies around the Milky Way’s rotation contains a lot of dark matter, for astronomy House and physicists, this is the biggest bright spot. ”
They almost filled dark matter, dark matter content of up to 99%, becoming the verification of existing dark matter model is correct ideal object. Invisible dark matter can only rely on its own gravity to prove their existence.
“Dwarf galaxy is dark matter theory verify the existing frontier zone, we need to find them to determine whether the existing picture of the universe real state of the universe. The discovery quite unexpectedly, almost did not appear in the earlier survey had such case, we have never truly believed to have met so many ‘treasures’. ”
“Treasure” in recent Reticulum (the Reticulum) at 97,000 light years away, it is soon to be a huge tidal forces tore the galaxy.
Farthest brightest that looks like a globular star clusters, located 1.2 million light-years away in the constellation Eridanus (the Eridanus), just at the edge of the Milky Way, is about to be towed came.
Institute of Astronomy at Cambridge University, one of collaborator Edwin Evans (Wyn Evans) said, “This is very strange! Perhaps these dwarf galaxies, the Magellanic Cloud was the turn around, and later was the size of the interaction force between Magellanic Cloud thrown out. Or they originally Magellanic Cloud constitute a huge clusters of galaxies, and later fell into the Milky Way along the track. ”