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The center of the Milky Way may be even more bizarre than astronomers thought, according to a new study.
For the study, a team of researchers from the Chinese Academy of Sciences in Nanjing investigated a map of radioactive gamma-rays — the highest-energy form of light in the universe, which can arise when extremely high-speed particles called cosmic rays crash into ordinary matter — blasting in and around the center of our galaxy.
The map revealed that something near the center of the galaxy appears to be accelerating particles to mind-blowing speeds — very near the speed of light — and creating an abundance of cosmic rays and gamma-rays just outside the galactic center. However, even as the galactic center blows a constant storm of high-energy radiation into space, something near the Milky Way‘s core prevents a large portion of cosmic rays from other parts of the universe from entering, the team reported Nov. 9 in the journal Nature Communications.
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An artist’s impression of the Milky Way’s center, using data from the Fermi Gamma-Ray Space Telescope. (Image credit: NASA Goddard)
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