Vishniac Instability: Experimental Preparation

Details Vishniac Instability: Experimental Preparation Vishniac Instability: Experimental Preparation

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sf2a.conf..443c&link_type=abstract

SF2A-2007: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics held in Grenoble, France, July

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

In this article we are interested by the pressure driven thin shell overstability (PDTSO) discovered by Vishniac in 1983. We studied this hydrodynamic instability in three stages. Firstly, we found an analytical solution at the Vishniac perturbation equations and we established several criteria for the growth of instability. Secondly, we researched in astrophysical observation the contribution of Vishniac instability in supernova remnant. The counterpart of this instability in the rippling of the radiative shock front is not clearly identified in this object pattern. Thirdly, we present evaluation of fluid and radiative parameters quantities to establish the feasibility of a future french radiative shock experiment scheduled in 2008 on LIL (Ligne d'Intégration Laser, Bordeaux, France).

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