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

F. Govoni; E. Orrù; A. Bonafede; M. Iacobelli; R. Paladino; F. Vazza; M. Murgia; V. Vacca; G. Giovannini; L. Feretti; F. Loi; G. Bernardi; C. Ferrari; R. F. Pizzo; C. Gheller; S. Manti; M. Brüggen; G. Brunetti; R. Cassano; F. De Gasperin; T. A. Enßlin; M. Hoeft; C. Horellou; H. Junklewitz; H. J.A. Röttgering; A. M.M. Scaife; T. W. Shimwell; R. J. Van Weeren; M. Wise

doi:10.1126/science.aat7500

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

F. Govoni^*, E. Orrù, A. Bonafede, M. Iacobelli, R. Paladino, F. Vazza, M. Murgia, V. Vacca, G. Giovannini, L. Feretti, F. Loi, G. Bernardi, C. Ferrari, R. F. Pizzo, C. Gheller, S. Manti, M. Brüggen, G. Brunetti, R. Cassano, F. De GasperinT. A. Enßlin, M. Hoeft, C. Horellou, H. Junklewitz, H. J.A. Röttgering, A. M.M. Scaife, T. W. Shimwell, R. J. Van Weeren, M. Wise

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	981-984
Number of pages	4
Journal	Science
Volume	364
Issue number	6444
Early online date	7 Jun 2019
DOIs	https://doi.org/10.1126/science.aat7500
Publication status	Published - 2019

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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., ... Wise, M. (2019). A radio ridge connecting two galaxy clusters in a filament of the cosmic web. Science, 364(6444), 981-984. https://doi.org/10.1126/science.aat7500

@article{4cc44b637422445da3c0656996a5364a,

title = "A radio ridge connecting two galaxy clusters in a filament of the cosmic web",

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.",

author = "F. Govoni and E. Orr{\`u} and A. Bonafede and M. Iacobelli and R. Paladino and F. Vazza and M. Murgia and V. Vacca and G. Giovannini and L. Feretti and F. Loi and G. Bernardi and C. Ferrari and Pizzo, {R. F.} and C. Gheller and S. Manti and M. Br{\"u}ggen and G. Brunetti and R. Cassano and {De Gasperin}, F. and En{\ss}lin, {T. A.} and M. Hoeft and C. Horellou and H. Junklewitz and R{\"o}ttgering, {H. J.A.} and Scaife, {A. M.M.} and Shimwell, {T. W.} and {Van Weeren}, {R. J.} and M. Wise",

year = "2019",

doi = "10.1126/science.aat7500",

language = "English",

volume = "364",

pages = "981--984",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science (A A A S)",

number = "6444",

}

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, RF, Gheller, C, Manti, S, Brüggen, M, Brunetti, G, Cassano, R, De Gasperin, F, Enßlin, TA, Hoeft, M, Horellou, C, Junklewitz, H, Röttgering, HJA, Scaife, AMM, Shimwell, TW, Van Weeren, RJ & Wise, M 2019, 'A radio ridge connecting two galaxy clusters in a filament of the cosmic web', Science, vol. 364, no. 6444, pp. 981-984. https://doi.org/10.1126/science.aat7500

TY - JOUR

T1 - A radio ridge connecting two galaxy clusters in a filament of the cosmic web

AU - Govoni, F.

AU - Orrù, E.

AU - Bonafede, A.

AU - Iacobelli, M.

AU - Paladino, R.

AU - Vazza, F.

AU - Murgia, M.

AU - Vacca, V.

AU - Giovannini, G.

AU - Feretti, L.

AU - Loi, F.

AU - Bernardi, G.

AU - Ferrari, C.

AU - Pizzo, R. F.

AU - Gheller, C.

AU - Manti, S.

AU - Brüggen, M.

AU - Brunetti, G.

AU - Cassano, R.

AU - De Gasperin, F.

AU - Enßlin, T. A.

AU - Hoeft, M.

AU - Horellou, C.

AU - Junklewitz, H.

AU - Röttgering, H. J.A.

AU - Scaife, A. M.M.

AU - Shimwell, T. W.

AU - Van Weeren, R. J.

AU - Wise, M.

PY - 2019

Y1 - 2019

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85067439923&partnerID=8YFLogxK

U2 - 10.1126/science.aat7500

DO - 10.1126/science.aat7500

M3 - Article

C2 - 31171695

AN - SCOPUS:85067439923

SN - 0036-8075

VL - 364

SP - 981

EP - 984

JO - Science

JF - Science

IS - 6444

ER -

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

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