Production of radiatively cooled hypersonic plasma jets and links to astrophysical jets

Details Production of radiatively cooled hypersonic plasma jets and links to astrophysical jets Production of radiatively cooled hypersonic plasma jets and links to astrophysical jets

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ppcf...47b.465l&link_type=abstract

Plasma Physics and Controlled Fusion, Volume 47, Issue 12B, pp. B465-B479 (2005).

Physics

Plasma Physics

24

Scientific paper

We present results of high energy density laboratory experiments on the production of supersonic radiatively cooled plasma jets with dimensionless parameters (Mach number ~30, cooling parameter ~1 and density contrast ρj/ρa ~ 10) similar to those in young stellar objects jets. The jets are produced using two modifications of wire array Z-pinch driven by 1 MA, 250 ns current pulse of MAGPIE facility at Imperial College, London. In the first set of experiments the produced jets are purely hydrodynamic and are used to study deflection of the jets by the plasma cross-wind, including the structure of internal oblique shocks in the jets. In the second configuration the jets are driven by the pressure of the toroidal magnetic field and this configuration is relevant to the astrophysical models of jet launching mechanisms. Modifications of the experimental configuration allowing the addition of the poloidal magnetic field and angular momentum to the jets are also discussed. We also present three-dimensional resistive magneto-hydrodynamic simulations of the experiments and discuss the scaling of the experiments to the astrophysical systems.

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