Formation of Working Surfaces in Radiatively Cooled Laboratory Jets

Details Formation of Working Surfaces in Radiatively Cooled Laboratory Jets Formation of Working Surfaces in Radiatively Cooled Laboratory Jets

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ap%26ss.298..241a&link_type=abstract

Astrophysics and Space Science, Volume 298, Issue 1-2, pp. 241-246

Astronomy and Astrophysics

Astrophysics

16

Jets, Outflows, Laboratory Plasmas

Scientific paper

Whilst observations provide many examples of collimated outflows or jets from astrophysical bodies, there remain unresolved questions relating to their formation, propagation and stability. The ability to form scaled jets in the laboratory has provided many useful insights. Experiments (Lebedev et al.: 2002, ApJ 564, 113) using conical arrays of fine metallic wires on the MAGPIE generator (1MA in 240 ns) have produced radiatively cooled collimated jets in vacuum using the redirection of convergent flows by a conical shock. Here we present results of a jet produced by this method propagating through a photo-ionized, quasi-stationary gas cloud. A working surface is observed at the head of the jet. The velocity of this working surface is lower than the velocity of a jet tip in vacuum.

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