AI Article Synopsis
- The study investigates perpendicular subcritical shocks created in a laboratory plasma environment using obstacles in a supermagnetosonic outflow from a z pinch setup.
- It confirms the presence of these shocks and notes the formation of secondary shocks downstream, with measurements revealing no significant hydrodynamic jump in shock structure.
- Additionally, the research finds minimal heating across the shock and demonstrates that the classical resistive diffusion length is roughly equal to the width of the shock, indicating low viscous dissipation.
Article Abstract
We present a study of perpendicular subcritical shocks in a collisional laboratory plasma. Shocks are produced by placing obstacles into the supermagnetosonic outflow from an inverse wire array z pinch. We demonstrate the existence of subcritical shocks in this regime and find that secondary shocks form in the downstream. Detailed measurements of the subcritical shock structure confirm the absence of a hydrodynamic jump. We calculate the classical (Spitzer) resistive diffusion length and show that it is approximately equal to the shock width. We measure little heating across the shock (<10% of the ion kinetic energy) which is consistent with an absence of viscous dissipation.
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| http://dx.doi.org/10.1103/PhysRevLett.129.225001 | DOI Listing |
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