Magnetically Driven Supersonic Plasma Jets in High Energy Density Experiments

Details Magnetically Driven Supersonic Plasma Jets in High Energy Density Experiments Magnetically Driven Supersonic Plasma Jets in High Energy Density Experiments

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1242..266s&link_type=abstract

PLASMAS IN THE LABORATORY AND THE UNIVERSE: Interactions, Patterns, and Turbulence. AIP Conference Proceedings, Volume 1242, pp

Computer Science

Plasma Jets, Supersonics, Accretion Disks, Reynolds Number, Jets And Bursts, Galactic Winds And Fountains, Supersonic And Hypersonic Flows, Infall, Accretion, And Accretion Disks, High-Reynolds-Number Turbulence

Scientific paper

Collimated outflows (jets) are ubiquitous in the universe, appearing around sources as diverse as protostars and extragalactic supermassive black holes. Jets are thought to be magnetically collimated, and launched from a magnetized accretion disk surrounding a compact gravitating object. We have developed the first laboratory experiment to address time-dependent, episodic phenomena relevant to the poorly understood jet acceleration and collimation region [1]. The experiments were performed on the MAGPIE pulsed power facility (1.5 MA, 250 ns) at Imperial College. The experimental results show the periodic ejections of magnetic bubbles naturally evolving into a heterogeneous jet propagating inside a channel made of self-collimated magnetic cavities. The results provide a unique view of the possible transition from a relatively steady-state jet launching to the observed highly structured outflows.

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