Influence of irradiation on the space-time structure of shock waves

Details Influence of irradiation on the space-time structure of shock waves Influence of irradiation on the space-time structure of shock waves

2001-08-02

arxiv.org/abs/astro-ph/0108041v1

Phys.Rev. E64 (2001) 066305

Astronomy and Astrophysics

Astrophysics

29 pages, 11 figures, submitted to Phys. Rev. E

Scientific paper

10.1103/PhysRevE.64.066305

The long-range energy deposition by heavy-ion beams makes new types of shock wave experiments possible in the laboratory. We have investigated a situation that is of relevance to supernova dynamics in astrophysics, where a shock wave is irradiated by a flux of neutrinos depositing energy throughout the shock wave and surrounding matter, thus changing the behaviour of the running shock. We have carried out fluid-dynamical simulations to study generic features of stimulated shock waves. First we consider an idealized case assuming uniform energy deposition into a planar shock wave propagating through an ideal gas. Then we investigate more realistic situations realizable in laboratory experiments with heavy-ion beams. We have found that energy deposition leads to two important effects: acceleration of the shock front and decay of the shock strength. The possibility of laboratory experiments is briefly discussed.

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