A radio ridge connecting two galaxy clusters in a filament of the cosmic web.

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ID: 99492
2019
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Abstract
Galaxy clusters are the most massive gravitationally bound structures in the Universe. They grow by accreting smaller structures in a merging process that produces shocks and turbulence in the intracluster gas. We observed a ridge of radio emission connecting the merging galaxy clusters Abell 0399 and Abell 0401 with the Low-Frequency Array (LOFAR) telescope network at 140 megahertz. This emission requires a population of relativistic electrons and a magnetic field located in a filament between the two galaxy clusters. We performed simulations to show that a volume-filling distribution of weak shocks may reaccelerate a preexisting population of relativistic particles, producing emission at radio wavelengths that illuminates the magnetic ridge.
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govoni2019ascience Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Govoni, F;Orrù, E;Bonafede, A;Iacobelli, M;Paladino, R;Vazza, F;Murgia, M;Vacca, V;Giovannini, G;Feretti, L;Loi, F;Bernardi, G;Ferrari, C;Pizzo, R F;Gheller, C;Manti, S;Brüggen, M;Brunetti, G;Cassano, R;de Gasperin, F;Enßlin, T A;Hoeft, M;Horellou, C;Junklewitz, H;Röttgering, H J A;Scaife, A M M;Shimwell, T W;van Weeren, R J;Wise, M;
Journal science (new york, ny)
Year 2019
DOI
10.1126/science.aat7500
URL
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