Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ap%26ss.322...25l&link_type=abstract
Astrophysics and Space Science, Volume 322, Issue 1-4, pp. 25-29
Astronomy and Astrophysics
Astrophysics
3
Plasma, Laser, Astrophysical Jet, Laboratory Astrophysics, Young Stellar Objects
Scientific paper
We present experimental results of plasma jet, interacted with an ambient medium, using intense lasers to investigate the complex features of astrophysical jets. This experiment was performed in France at the LULI facility, Ecole Polytechnique, using one long pulse laser to generate the jet and a short pulse laser to probe it by proton radiography. A foam filled cone target was used to generate high velocity plasma jet, and a gas jet nozzle produced the well known ambient medium. Using visible pyrometry and interferometry, we were able to measure the jet velocity and electronic density. We get a panel of measurements at various gas density and time delay. From these measurements, we could underline the growth of a perturbed shape of the jet interaction with the ambient medium. The reason of this last observation is still in debate and will be presented in the article.
Barroso Patrice
Bouquet Serge
Falize Emeric
Gregory C. D.
Koenig Markus
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