TOKYO / LONDON (IT BOLTWISE) – A Japanese scientist may have made a breakthrough in astronomy. Using NASA’s Fermi Gamma-Ray Space Telescope, specific gamma rays have been discovered that could indicate the existence of dark matter. This discovery could revolutionize the understanding of the universe.
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Dark matter, an astronomy mystery that has existed for almost a century, may now have been directly observed for the first time. A team of researchers led by Professor Tomonori Totani of the University of Tokyo has used NASA’s Fermi Gamma-Ray Space Telescope to detect specific gamma rays that match theoretical predictions for dark matter. These gamma rays, with a photon energy of 20 gigaelectron volts, extend toward the center of the Milky Way in a halo-like structure.
The challenge in studying dark matter is that it does not interact with electromagnetic radiation. This means that it does not absorb, reflect or emit light, which previously made it impossible to observe directly. Swiss astronomer Fritz Zwicky was the first to postulate the existence of an invisible matter responsible for holding galaxies together in the 1930s.
Many researchers suspect that dark matter consists of so-called WIMPs – weakly interacting massive particles. The theory is that when two WIMPs collide, gamma ray photons are released. Totani’s measurements show an energy spectrum that exactly matches the predicted annihilation of these hypothetical particles. This discovery could be a significant step in astronomy and physics because it implies a new particle outside the Standard Model of particle physics.
Although the results are promising, caution is advised. Totani’s findings need to be confirmed by independent analysis. Additional evidence, such as detection of the same gamma-ray emissions in dwarf galaxies, could further support the hypothesis. These studies could soon be possible as more data is collected, which would further strengthen the evidence for the existence of dark matter.
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