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Dunlap Institute

The Search for the Radio Cosmic Web and Large-Scale Cosmic Magnetism Begins

3 Apr 2017, 08:19 UTC
The Search for the Radio Cosmic Web and Large-Scale Cosmic Magnetism Begins Springel et al. (2005)

Using a novel method, a team of astronomers has performed the most comprehensive search yet for a radio signal from the cosmic web, the vast network of filaments connecting clusters of galaxies.
The search is an important step forward in mapping the large-scale magnetic field of the Universe because any radio signal from the cosmic web would be generated by the interplay between gas in the filaments and the filaments’ magnetic field.
“Radio emission from the cosmic web has yet to be detected,” says Tessa Vernstrom. “It is expected to be very faint, spread over large areas, and mixed with emission from other sources such as our Galaxy or other galaxies."

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