{ "id": "1112.3448", "version": "v1", "published": "2011-12-15T08:35:55.000Z", "updated": "2011-12-15T08:35:55.000Z", "title": "A Shallow Water Analogue of the Standing Accretion Shock Instability: Experimental Demonstration and Two-Dimensional Model", "authors": [ "Thierry Foglizzo", "Frédéric Masset", "Jérôme Guilet", "Gilles Durand" ], "comment": "4 pages, 4 figures, accepted for publication in Phys. Rev. Letters. Supplementary Material (6 movies) available at http://irfu.cea.fr/Projets/SN2NS/outreach.html", "journal": "Phys. Rev. Lett. 108, 051103 (2012)", "doi": "10.1103/PhysRevLett.108.051103", "categories": [ "astro-ph.HE", "physics.flu-dyn", "physics.pop-ph" ], "abstract": "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.", "revisions": [ { "version": "v1", "updated": "2011-12-15T08:35:55.000Z" } ], "analyses": { "subjects": [ "95.30.Lz", "01.50.Pa", "97.60.Bw", "47.20.-k" ], "keywords": [ "standing accretion shock instability", "shallow water analogue", "experimental demonstration", "two-dimensional model", "first laboratory experiment" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2012, "month": "Feb", "volume": 108, "number": 5, "pages": "051103" }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1081602, "adsabs": "2012PhRvL.108e1103F" } } }