VLA image of radio-emitting mini-halo in the Perseus Cluster of galaxies. Radio emission in red; optical in white. Credit: Gendron-Marsolais et al.; NRAO/AUI/NSF; NASA; SDSS.
New details help unravel mystery of structure’s origin. Astronomers using the Karl G. Jansky Very Large Array (VLA) have discovered new details that are helping them decipher the mystery of how giant radio-emitting structures are formed at the center of a cluster of galaxies. The scientists studied a cluster of thousands of galaxies more than 250 million light-years from Earth, named the Perseus Cluster after the constellation in which it appears. Embedded within the center, the Perseus Cluster hosts a pool of superfast particles that emit radio waves, creating a radio structure known as a “mini-halo...
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