A laser experiment for studying radiative shocks in astrophysics

X. Fleury 1 S. Bouquet 1 C. Stehlé 2 M. Koenig 3 D. Batani 4 A. Benuzzi-Mounaix 3 J. -P. Chièze 5 N. Grandjouan 3 J. Grenier 6 T. Hall 7 E. Henry 4 J.-P. Lafon 2 S. Leygnac 2 Victor Malka 3 B. Marchetti 8 H. Merdji 5 C. Michaut 2 F. Thais 5
1 DPTA - Département de Physique Théorique et Appliquée
DAM/DIF - DAM Île-de-France : DAM/DIF
2 DASGAL - Departement d'Astrophysique Stellaire et Galactique
3 LULI - Laboratoire pour l'utilisation des lasers intenses
4 Dipartimento di Fisica "G. Occhialini," Università degli Studi di Milano Bicocca and INFM
5 DAP - Département d'Astrophysique (ex SAP)
6 CESTA - Centre d'études scientifiques et techniques d'Aquitaine
7 University of Essex
8 Département de Conception et de Réalisation des Expériences
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-mm^3 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.
Keywords : Interferometry Laser astrophysics Radiative precursor Self similar solutions
Document type :
Journal articles
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https://hal-polytechnique.archives-ouvertes.fr/hal-00518950
Contributor : Thuy Le <>
Submitted on : Friday, September 17, 2010 - 3:33:47 PM
Last modification on : Wednesday, July 3, 2019 - 4:20:08 PM

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X. Fleury, S. Bouquet, C. Stehlé, M. Koenig, D. Batani, et al.. A laser experiment for studying radiative shocks in astrophysics. Laser and Particle Beams, Cambridge University Press (CUP), 2002, 20 (2), pp.263-268. ⟨10.1017/S0263034602202165⟩. ⟨hal-00518950⟩

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