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

Govoni, F., Orrù, E., Bonafede, A., Iacobelli, M., Paladino, R., Vazza, F., et al. (2019). A radio ridge connecting two galaxy clusters in a filament of the cosmic web. Science, 364(6444), 981-985. doi:10.1126/science.aat7500.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-482F-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-4830-5
Genre: Journal Article

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Govoni, F., Author
Orrù, E., Author
Bonafede, A., Author
Iacobelli, M., Author
Paladino, R., Author
Vazza, F., Author
Murgia, M., Author
Vacca, V., Author
Giovannini, G., Author
Feretti, L., Author
Loi, F., Author
Bernardi, G., Author
Ferrari, C., Author
Pizzo, R. F., Author
Gheller, C., Author
Manti, S., Author
Brüggen, M., Author
Brunetti, G., Author
Cassano, R., Author
de Gasperin, F., Author
Enßlin, T. A.1, Author              Hoeft, M., AuthorHorellou, C., AuthorJunklewitz, H., AuthorRöttgering, H. J. A., AuthorScaife, A. M. M., AuthorShimwell, T. W., Authorvan Weeren, R. J., AuthorWise, M., Author more..
Affiliations:
1Computational Structure Formation, MPI for Astrophysics, Max Planck Society, ou_2205642              

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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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 Dates: 2019-06-07
 Publication Status: Published online
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 Identifiers: DOI: 10.1126/science.aat7500
Other: LOCALID: 3138722
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Title: Science
  Other : Science
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Association for the Advancement of Science
Pages: - Volume / Issue: 364 (6444) Sequence Number: - Start / End Page: 981 - 985 Identifier: ISSN: 0036-8075
CoNE: https://pure.mpg.de/cone/journals/resource/991042748276600_1