Dark matter or related to the center of the Milky Way mysterious gamma ray beam

Scientists have discovered that the universe has a lot of dark matter, the cold dark matter model, the dark matter in the universe accounted for about 27%, ordinary matter we usually see, such as galaxies accounted for only about 5%, so how to detect dark matter? The scientists found that gamma ray "the mystery types of the Milky Way's central beam", could be from dark matter, in the past few years, scientists have debated whether by gamma ray "dark matter formed beam".
At present, the researchers used the United States NASA's Fermi Gama X-ray space telescope to detect Gama ray "beam", trying to determine whether the light dark matter will have a mysterious "". The current dark matter theories suggest that dark matter may be a class known as weakly interacting massive particles (WIMP), the dark matter particle mass may be higher than the ordinary particles, and do not participate in the action of electromagnetic force, moving more slowly. Weakly interacting massive particles are thought to have their own "antimatter", if the two WIMP particle collision, is annihilation, and a gamma photon, which explains the central Galaxy dark matter agglomeration why found gamma ray "mysterious beam", the United States NASA's Fermi Space Telescope has been observed this phenomenon.
University of Amsterdam astrophysicist Christoph Weniger says there have been signs that we have detected dark matter particles, Fermi telescope is a scan of the galactic center region. Since the Fermi Space Telescope launched, has been used for the observation in many fields, including the discovery task pulsars and supermassive black holes, to explore the relationship between these objects and gamma rays. Harvard University astrophysicist Doug Fink bina think the Fermi Space Telescope has provided a new way to explore the dark matter, we have started a new observing strategy, the answer will be in 2015.
Scientists hope to identify gamma rays in the center of the Milky Way near the existence of other types, the "beam" may be in about 130GeV energy interval, in this regard, scientists have assumed is observation instrument problems caused by abnormal, California University astrophysical West Mona Murgia said that except the 130GeV photon, low energy gamma ray we also found 2-3GeV energy range.