Most Convincing Evidence Yet For Dark Matter Detection

Researchers have been examining high-energy gamma rays initiating from the center of the Milky Way and have offered the most definite example so far that nonetheless some of this might come from dark matter. Dark matter is a kind of matter that is supposed to description for seeming effects due to mass where no mass can be detected. It acts in a different way to regular matter, for example planets and stars, which only accounts for about 5% of the universe. It neither releases nor absorbs light or additional forms of electromagnetic energy, so a simple description is that it is matter that does not respond to light. The total mass-energy of the acknowledged universe is projected to cover roughly 27% dark matter. By means of data composed from NASA’s Fermi Gamma-ray Space Telescope, researchers from several institutes produced charts of the midpoint of the galaxy. They found that some of the high-energy gamma rays might not be suitably clarified by recognized causes. There are many known causes of gamma-rays in the center of the galaxy, such as supernova leftovers, but it is also projected to be rich in dark matter. Though researchers know the presence of dark matter, they are not completely certain of what it is composed of. Weakly Interacting Massive Particles (WIMPs) are a solid candidate. It is supposed that collision of WIMPs may create a rapidly decaying particle, which might create gamma rays measureable by Fermi.
Image Credit: T. Linden, University of Chicago


Once they unconcerned all the recognized causes of gamma rays from the Fermi observations, some discharge was leftover. If dark matter particles with a specific mass are terminating each other, this would be an extraordinary fit for the left over emission. Regardless of this, the researchers err on the side of carefulness as other sources might still exist. More detection are also compulsory to make this clarification more definite. The Fermi researchers have also rotated elsewhere in an effort to spot dark matter by observing dwarf galaxies orbiting the Milky Way. Dwarf galaxies are ironic in dark matter and lack other kinds of gamma-ray bases present in the center of the Milky Way which mark recognition of dark matter difficult. On the casual side, their distance from us and the detail that the dark matter existing is still significantly less than that in the center of the Milky Way means that the indications are weak. Elliott Bloom, an associate of the Fermi collaboration, says “If we ultimately see a significant signal, it could be a very strong confirmation of the dark matter signal claimed in the galactic center.”

Though at this phase the signal cannot be definite or disproved as dark matter, it signifies a thrilling step towards the revealing of dark matter at the galactic center.  You can watch this video for further info.


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Most Convincing Evidence Yet For Dark Matter Detection Most Convincing Evidence Yet For Dark Matter Detection Reviewed by Umer Abrar on 6/20/2014 Rating: 5

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