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A laser experiment for studying radiative shocks in astrophysics

  • X. FLEURY (a1), S. BOUQUET (a1), C. STEHLÉ (a2), M. KOENIG (a3), D. BATANI (a4), A. BENUZZI-MOUNAIX (a3), J.-P. CHIÈZE (a5), N. GRANDJOUAN (a3), J. GRENIER (a6), T. HALL (a7), E. HENRY (a4), J.-P. LAFON (a2), S. LEYGNAC (a2), V. MALKA (a3), B. MARCHET (a8), H. MERDJI (a5), C. MICHAUT (a2) and F. THAIS (a5)...

Abstract

In this article, we present a laboratory astrophysics experiment on radiative shocks and its interpretation using simple modelization. The experiment is performed with a 100-J laser (pulse duration of about 0.5 ns) which irradiates a 1-mm3 xenon gas-filled cell. Descriptions of both the experiment and the associated diagnostics are given. The apparition of a radiation precursor in the unshocked material is evidenced from interferometry diagrams. A model including self-similar solutions and numerical ones is derived and fairly good agreements are obtained between the theoretical and the experimental results.

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Corresponding author

Address correspondence and reprint requests to: S. Bouquet, Département de Physique Théorique et Appliquée, Commissariat à l'Énergie Atomique, BP 12, 91680 Bruyéres-le-Châtel, France. E-mail: bouquets@bruyeres.cea.fr.

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