The evolution of magnetic tower jets in the laboratory

A. Ciardi; S. V. Lebedev; A. Frank; E. G. Blackman; J. P. Chittenden; C. J. Jennings; D. J. Ampleford; S. N. Bland; S. C. Bott; J. Rapley; G. N. Hall; F. A. Suzuki-Vidal; A. Marocchino; T. Lery; C. Stehle

doi:10.1063/1.2436479

The evolution of magnetic tower jets in the laboratory

A. Ciardi^*, S. V. Lebedev, A. Frank, E. G. Blackman, J. P. Chittenden, C. J. Jennings, D. J. Ampleford, S. N. Bland, S. C. Bott, J. Rapley, G. N. Hall, F. A. Suzuki-Vidal, A. Marocchino, T. Lery, C. Stehle

^*Corresponding author for this work

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

156 Scopus citations

Abstract

The evolution of laboratory produced magnetic jets is followed numerically through three-dimensional, nonideal magnetohydrodynamic simulations. The experiments are designed to study the interaction of a purely toroidal field with an extended plasma background medium. The system is observed to evolve into a structure consisting of an approximately cylindrical magnetic cavity with an embedded magnetically confined jet on its axis. The supersonic expansion produces a shell of swept-up shocked plasma that surrounds and partially confines the magnetic tower. Currents initially flow along the walls of the cavity and in the jet but the development of current-driven instabilities leads to the disruption of the jet and a rearrangement of the field and currents. The top of the cavity breaks up, and a well-collimated, radiatively cooled, "clumpy" jet emerges from the system.

Original language	English (US)
Article number	056501
Journal	PHYSICS OF PLASMAS
Volume	14
Issue number	5
DOIs	https://doi.org/10.1063/1.2436479
State	Published - 2007
Externally published	Yes

Bibliographical note

Funding Information:
The present work was supported in part by the European Community’s Marie Curie Actions—Human Resource and Mobility within the JETSET (Jet Simulations Experiments and Theory) network under Contract No. MRTN-CT-2004 005592. The authors also wish to acknowledge the SFI/HEA Irish Centre for High-End Computing (ICHEC) and the London e-Science Centre (LESC) for the provision of computational facilities and support.

ASJC Scopus subject areas

Condensed Matter Physics

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10.1063/1.2436479

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title = "The evolution of magnetic tower jets in the laboratory",

abstract = "The evolution of laboratory produced magnetic jets is followed numerically through three-dimensional, nonideal magnetohydrodynamic simulations. The experiments are designed to study the interaction of a purely toroidal field with an extended plasma background medium. The system is observed to evolve into a structure consisting of an approximately cylindrical magnetic cavity with an embedded magnetically confined jet on its axis. The supersonic expansion produces a shell of swept-up shocked plasma that surrounds and partially confines the magnetic tower. Currents initially flow along the walls of the cavity and in the jet but the development of current-driven instabilities leads to the disruption of the jet and a rearrangement of the field and currents. The top of the cavity breaks up, and a well-collimated, radiatively cooled, {"}clumpy{"} jet emerges from the system.",

author = "A. Ciardi and Lebedev, {S. V.} and A. Frank and Blackman, {E. G.} and Chittenden, {J. P.} and Jennings, {C. J.} and Ampleford, {D. J.} and Bland, {S. N.} and Bott, {S. C.} and J. Rapley and Hall, {G. N.} and Suzuki-Vidal, {F. A.} and A. Marocchino and T. Lery and C. Stehle",

note = "Funding Information: The present work was supported in part by the European Community{\textquoteright}s Marie Curie Actions—Human Resource and Mobility within the JETSET (Jet Simulations Experiments and Theory) network under Contract No. MRTN-CT-2004 005592. The authors also wish to acknowledge the SFI/HEA Irish Centre for High-End Computing (ICHEC) and the London e-Science Centre (LESC) for the provision of computational facilities and support.",

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language = "English (US)",

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AU - Ciardi, A.

AU - Lebedev, S. V.

AU - Frank, A.

AU - Blackman, E. G.

AU - Chittenden, J. P.

AU - Jennings, C. J.

AU - Ampleford, D. J.

AU - Bland, S. N.

AU - Bott, S. C.

AU - Rapley, J.

AU - Hall, G. N.

AU - Suzuki-Vidal, F. A.

AU - Marocchino, A.

AU - Lery, T.

AU - Stehle, C.

N1 - Funding Information: The present work was supported in part by the European Community’s Marie Curie Actions—Human Resource and Mobility within the JETSET (Jet Simulations Experiments and Theory) network under Contract No. MRTN-CT-2004 005592. The authors also wish to acknowledge the SFI/HEA Irish Centre for High-End Computing (ICHEC) and the London e-Science Centre (LESC) for the provision of computational facilities and support.

PY - 2007

Y1 - 2007

N2 - The evolution of laboratory produced magnetic jets is followed numerically through three-dimensional, nonideal magnetohydrodynamic simulations. The experiments are designed to study the interaction of a purely toroidal field with an extended plasma background medium. The system is observed to evolve into a structure consisting of an approximately cylindrical magnetic cavity with an embedded magnetically confined jet on its axis. The supersonic expansion produces a shell of swept-up shocked plasma that surrounds and partially confines the magnetic tower. Currents initially flow along the walls of the cavity and in the jet but the development of current-driven instabilities leads to the disruption of the jet and a rearrangement of the field and currents. The top of the cavity breaks up, and a well-collimated, radiatively cooled, "clumpy" jet emerges from the system.

AB - The evolution of laboratory produced magnetic jets is followed numerically through three-dimensional, nonideal magnetohydrodynamic simulations. The experiments are designed to study the interaction of a purely toroidal field with an extended plasma background medium. The system is observed to evolve into a structure consisting of an approximately cylindrical magnetic cavity with an embedded magnetically confined jet on its axis. The supersonic expansion produces a shell of swept-up shocked plasma that surrounds and partially confines the magnetic tower. Currents initially flow along the walls of the cavity and in the jet but the development of current-driven instabilities leads to the disruption of the jet and a rearrangement of the field and currents. The top of the cavity breaks up, and a well-collimated, radiatively cooled, "clumpy" jet emerges from the system.

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The evolution of magnetic tower jets in the laboratory

Abstract

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