Laboratory investigation of bow shocks in radiatively cooled plasmas

Details Laboratory investigation of bow shocks in radiatively cooled plasmas Laboratory investigation of bow shocks in radiatively cooled plasmas

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aps..apr8he013a&link_type=abstract

American Physical Society, 2008 APS April Meeting and HEDP/HEDLA Meeting, April 11-15, 2008, abstract #8HE.013

Astronomy and Astrophysics

Astrophysics

Scientific paper

Magnetized and radiatively cooled shocks are present in many astrophysical systems. The early stage of a wire array z-pinch implosion consists of the steady ablation of material from fine metallic wires. Ablated material is accelerated toward the array axis by the JxB force. This flow is highly supersonic (M>5) and becomes super-Afvenic (MA>2). Radiative cooling is significant in this flow, and can be controlled by varying the material in the ablated plasma. The introduction of a wire as an obstruction in this steady flow leads to the formation of bow shocks. The magnetic field associated with this obstruction wire can be controlled by varying the current through it. Differences in the shock for different cooling rates and different magnetic fields associated with the obstruction will be discussed.

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