Thierry Foglizzo, Frédéric Masset, Jérôme Guilet, Gilles Durand
Despite the sphericity of the collapsing stellar core, the birth conditions
of neutron stars can be highly non spherical due to a hydrodynamical
instability of the shocked accretion flow. Here we report the first laboratory
experiment of a shallow water analogue, based on the physics of hydraulic
jumps. Both the experiment and its shallow water modeling demonstrate a robust
linear instability and nonlinear properties of symmetry breaking, in a system
which is one million times smaller and about hundred times slower than its
astrophysical analogue.
View original:
http://arxiv.org/abs/1112.3448
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