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A laboratory simulation of astrophysical processes is one of the intensivelydeveloped areas of plasma physics. A new series of experiments has beenlaunched recently on the Plasma Focus type facility in NRC Kurchatov Institute.The main goal is to study the mechanisms of the jet stabilization, due to whichit can propagate at distances much greater than their transverse dimensions.The experiments with stationary gas filling revealed regimes in which anarrowly collimated plasma jet was formed, the head of which was no wider thanseveral centimeters at jet propagation distances of up to 100 cm. The PF-1000(IFPiLM, Warsaw, Poland) and KPF-4 (SFTI, Sukhum, Abkhazia) experiments areaimed at creating profiled initial gas distributions to control the conditionsof plasma jet propagation in the ambient plasma. Estimations of thedimensionless parameters, i.e. the Mach, Reynolds, and Peclet numbers whichwere achieved during the experiments, showed that the PF-facilities can be usedfor the YSO jets modelling. The future experiments, which can allow one tounderstand the nature of the stable plasma ejections observed in manyastrophysical sources, are discussed.

Laboratory simulation of astrophysical jets within facilities of Plasma Focus type