Developed turbulence and nonlinear amplification of magnetic fields in laboratory and astrophysical plasmas

Jena Meinecke, Petros Tzeferacos, Anthony Bell, Robert Bingham, Robert Clarke, Eugene Churazov, Robert Crowston, Hugo Doyle, R. Paul Drake, Robert Heathcote, Michel Koenig, Yasuhiro Kuramitsu, Carolyn Kuranz, Dongwook Lee, Michael MacDonald, Christopher Murphy, Margaret Notley, Hye-Sook Park, Alexander Pelka, Alessandra Ravasio & 9 others Brian Reville, Youichi Sakawa, Willow Wan, Nigel Woolsey, Roman Yurchak, Francesco Miniati, Alexander Schekochihin, Don Lamb, Gianluca Gregori

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The visible matter in the universe is turbulent and magnetized. Turbulence in galaxy clusters is produced by mergers and by jets of the central galaxies and believed responsible for the amplification of magnetic fields. We report on experiments looking at the collision of two laser-produced plasma clouds, mimicking, in the laboratory, a cluster merger event. By measuring the spectrum of the density fluctuations, we infer developed, Kolmogorov-like turbulence. From spectral line broadening, we estimate a level of turbulence consistent with turbulent heating balancing radiative cooling, as it likely does in galaxy clusters. We show that the magnetic field is amplified by turbulent motions, reaching a nonlinear regime that is a precursor to turbulent dynamo. Thus, our experiment provides a promising platform for understanding the structure of turbulence and the amplification of magnetic fields in the universe.

LanguageEnglish
Pages8211-8215
Number of pages5
JournalProceedings of the National Academy of Sciences
Volume112
Issue number27
Early online date22 Jun 2015
DOIs
Publication statusPublished - 7 Jul 2015

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astrophysics
turbulence
galaxies
magnetic fields
universe
plasma clouds
laser plasmas
line spectra
platforms
cooling
heating
collisions
estimates

Keywords

  • galaxy clusters
  • laboratory analogues
  • lasers
  • magnetic fields
  • turbulence
  • magnetic field amplification

Cite this

Meinecke, Jena ; Tzeferacos, Petros ; Bell, Anthony ; Bingham, Robert ; Clarke, Robert ; Churazov, Eugene ; Crowston, Robert ; Doyle, Hugo ; Drake, R. Paul ; Heathcote, Robert ; Koenig, Michel ; Kuramitsu, Yasuhiro ; Kuranz, Carolyn ; Lee, Dongwook ; MacDonald, Michael ; Murphy, Christopher ; Notley, Margaret ; Park, Hye-Sook ; Pelka, Alexander ; Ravasio, Alessandra ; Reville, Brian ; Sakawa, Youichi ; Wan, Willow ; Woolsey, Nigel ; Yurchak, Roman ; Miniati, Francesco ; Schekochihin, Alexander ; Lamb, Don ; Gregori, Gianluca. / Developed turbulence and nonlinear amplification of magnetic fields in laboratory and astrophysical plasmas. In: Proceedings of the National Academy of Sciences . 2015 ; Vol. 112, No. 27. pp. 8211-8215.
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abstract = "The visible matter in the universe is turbulent and magnetized. Turbulence in galaxy clusters is produced by mergers and by jets of the central galaxies and believed responsible for the amplification of magnetic fields. We report on experiments looking at the collision of two laser-produced plasma clouds, mimicking, in the laboratory, a cluster merger event. By measuring the spectrum of the density fluctuations, we infer developed, Kolmogorov-like turbulence. From spectral line broadening, we estimate a level of turbulence consistent with turbulent heating balancing radiative cooling, as it likely does in galaxy clusters. We show that the magnetic field is amplified by turbulent motions, reaching a nonlinear regime that is a precursor to turbulent dynamo. Thus, our experiment provides a promising platform for understanding the structure of turbulence and the amplification of magnetic fields in the universe.",
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Meinecke, J, Tzeferacos, P, Bell, A, Bingham, R, Clarke, R, Churazov, E, Crowston, R, Doyle, H, Drake, RP, Heathcote, R, Koenig, M, Kuramitsu, Y, Kuranz, C, Lee, D, MacDonald, M, Murphy, C, Notley, M, Park, H-S, Pelka, A, Ravasio, A, Reville, B, Sakawa, Y, Wan, W, Woolsey, N, Yurchak, R, Miniati, F, Schekochihin, A, Lamb, D & Gregori, G 2015, 'Developed turbulence and nonlinear amplification of magnetic fields in laboratory and astrophysical plasmas' Proceedings of the National Academy of Sciences , vol. 112, no. 27, pp. 8211-8215. https://doi.org/10.1073/pnas.1502079112

Developed turbulence and nonlinear amplification of magnetic fields in laboratory and astrophysical plasmas. / Meinecke, Jena; Tzeferacos, Petros; Bell, Anthony; Bingham, Robert; Clarke, Robert; Churazov, Eugene; Crowston, Robert; Doyle, Hugo; Drake, R. Paul; Heathcote, Robert; Koenig, Michel; Kuramitsu, Yasuhiro; Kuranz, Carolyn; Lee, Dongwook; MacDonald, Michael; Murphy, Christopher; Notley, Margaret; Park, Hye-Sook; Pelka, Alexander; Ravasio, Alessandra; Reville, Brian; Sakawa, Youichi; Wan, Willow; Woolsey, Nigel; Yurchak, Roman; Miniati, Francesco; Schekochihin, Alexander; Lamb, Don; Gregori, Gianluca.

In: Proceedings of the National Academy of Sciences , Vol. 112, No. 27, 07.07.2015, p. 8211-8215.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Developed turbulence and nonlinear amplification of magnetic fields in laboratory and astrophysical plasmas

AU - Meinecke, Jena

AU - Tzeferacos, Petros

AU - Bell, Anthony

AU - Bingham, Robert

AU - Clarke, Robert

AU - Churazov, Eugene

AU - Crowston, Robert

AU - Doyle, Hugo

AU - Drake, R. Paul

AU - Heathcote, Robert

AU - Koenig, Michel

AU - Kuramitsu, Yasuhiro

AU - Kuranz, Carolyn

AU - Lee, Dongwook

AU - MacDonald, Michael

AU - Murphy, Christopher

AU - Notley, Margaret

AU - Park, Hye-Sook

AU - Pelka, Alexander

AU - Ravasio, Alessandra

AU - Reville, Brian

AU - Sakawa, Youichi

AU - Wan, Willow

AU - Woolsey, Nigel

AU - Yurchak, Roman

AU - Miniati, Francesco

AU - Schekochihin, Alexander

AU - Lamb, Don

AU - Gregori, Gianluca

PY - 2015/7/7

Y1 - 2015/7/7

N2 - The visible matter in the universe is turbulent and magnetized. Turbulence in galaxy clusters is produced by mergers and by jets of the central galaxies and believed responsible for the amplification of magnetic fields. We report on experiments looking at the collision of two laser-produced plasma clouds, mimicking, in the laboratory, a cluster merger event. By measuring the spectrum of the density fluctuations, we infer developed, Kolmogorov-like turbulence. From spectral line broadening, we estimate a level of turbulence consistent with turbulent heating balancing radiative cooling, as it likely does in galaxy clusters. We show that the magnetic field is amplified by turbulent motions, reaching a nonlinear regime that is a precursor to turbulent dynamo. Thus, our experiment provides a promising platform for understanding the structure of turbulence and the amplification of magnetic fields in the universe.

AB - The visible matter in the universe is turbulent and magnetized. Turbulence in galaxy clusters is produced by mergers and by jets of the central galaxies and believed responsible for the amplification of magnetic fields. We report on experiments looking at the collision of two laser-produced plasma clouds, mimicking, in the laboratory, a cluster merger event. By measuring the spectrum of the density fluctuations, we infer developed, Kolmogorov-like turbulence. From spectral line broadening, we estimate a level of turbulence consistent with turbulent heating balancing radiative cooling, as it likely does in galaxy clusters. We show that the magnetic field is amplified by turbulent motions, reaching a nonlinear regime that is a precursor to turbulent dynamo. Thus, our experiment provides a promising platform for understanding the structure of turbulence and the amplification of magnetic fields in the universe.

KW - galaxy clusters

KW - laboratory analogues

KW - lasers

KW - magnetic fields

KW - turbulence

KW - magnetic field amplification

UR - http://www.pnas.org/

U2 - 10.1073/pnas.1502079112

DO - 10.1073/pnas.1502079112

M3 - Article

VL - 112

SP - 8211

EP - 8215

JO - Proceedings of the National Academy of Sciences

T2 - Proceedings of the National Academy of Sciences

JF - Proceedings of the National Academy of Sciences

SN - 1091-6490

IS - 27

ER -