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Dynamic and Stagnating Plasma Flow Leading to Magnetic-Flux-Tube Collimation

You, S. and Yun, G. S. and Bellan, P. M. (2005) Dynamic and Stagnating Plasma Flow Leading to Magnetic-Flux-Tube Collimation. Physical Review Letters, 95 (4). Art. No. 045002. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:YOUprl05

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Abstract

Highly collimated, plasma-filled magnetic-flux tubes are frequently observed on galactic, stellar, and laboratory scales. We propose that a single, universal magnetohydrodynamic pumping process explains why such collimated, plasma-filled magnetic-flux tubes are ubiquitous. Experimental evidence from carefully diagnosed laboratory simulations of astrophysical jets confirms this assertion and is reported here. The magnetohydrodynamic process pumps plasma into a magnetic-flux tube and the stagnation of the resulting flow causes this flux tube to become collimated.


Item Type:Article
Additional Information:©2005 The American Physical Society. (Received 6 February 2005; published 22 July 2005) This work was supported by the U.S. DoE and NSF. See also: Plasma jets on Earth, Phys. Rev. Focus 16(4) 2 August 2005. http://focus.aps.org/story/v16/st4
Subject Keywords:plasma magnetohydrodynamics; astrophysical plasma; astrophysical jets; discharges (electric); Doppler measurement; plasma diagnostics
Record Number:CaltechAUTHORS:YOUprl05
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:YOUprl05
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.95.045002
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:7372
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:06 Feb 2007
Last Modified:26 Dec 2012 09:31

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