Astrophysical Jets via Laser Plasma Interaction.

Details Astrophysical Jets via Laser Plasma Interaction. Astrophysical Jets via Laser Plasma Interaction.

Nov 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aps..dpp.rp196e&link_type=abstract

American Physical Society, 41st Annual Meeting of the Division of Plasma Physics, November 15-19, 1999 Seattle, WA, abstract #RP

Physics

Plasma Physics

Scientific paper

Previous laser-plasma experiments and simulations demonstrated radiatively cooled flows relevant to the propagation of astronomical Herbig-Haro jets from young stars [D.R. Farley, et al, Phys. Rev. Lett. (in press)]. The surroundings into which Herbig-Haro jets travel have densities around ten times lower than the jets, leading to bow shocks, Mach disks, internal and spur shocks, and lateral Kelvin-Helmholtz instabilities. We plan laser experiments on the Gekko laser reproducing the density contrast by propagating the plasma into foams and gases of various densities. Herbig-Haro jets are thought to be accelerated and collimated by MHD effects. Laser experiments are planned including magnetic fields which are initially frozen in the gold target, then compressed as the gold implodes along the center line focus. We will present simulations.

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