Abstract
Results from a scaled, collision-free, laser-plasma experiment designed to address aspects of collisionless plasma interaction in a high-plasma β supernova remnant (SNR) are discussed. Ideal magneto-hydrodynamic scaling indicates that the experimental plasma matches the SNR plasma at 500 ps. Experimental data show that the magnetic field can alter the plasma density profile when two similar plasmas interact in a colliding geometry. These results are not explained by magnetic-field pressure; they do, however, suggest magnetic field penetration that localizes the plasma particles to the Larmor radius, which appears smaller than the size of the experiment and the particle mean-free paths and may thus increase the effective collisionality of the interacting plasma system.
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Courtois, C., Grundy, R.A.D., Ash, A.D. et al. Experiment on Collisionless Plasma Interaction with Applications to Supernova Remnant Physics. Astrophys Space Sci 298, 93–98 (2005). https://doi.org/10.1007/s10509-005-3917-1
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DOI: https://doi.org/10.1007/s10509-005-3917-1