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A laser experiment for studying radiative shocks in astrophysics

Published online by Cambridge University Press:  13 November 2002

X. FLEURY ,
S. BOUQUET ,
C. STEHLÉ ,
M. KOENIG ,
D. BATANI ,
A. BENUZZI-MOUNAIX ,
J.-P. CHIÈZE ,
N. GRANDJOUAN ,
J. GRENIER  and
T. HALL
...Show all authors
X. FLEURY
Affiliation:
Département de Physique Théorique et Appliquée, Commissariat à l'Énergie Atomique, BP 12, 91680 Bruyères-le-Châtel, France
S. BOUQUET
Affiliation:
Département de Physique Théorique et Appliquée, Commissariat à l'Énergie Atomique, BP 12, 91680 Bruyères-le-Châtel, France
C. STEHLÉ
Affiliation:
Département d'Astrophysique Stellaire et Galactique, Observatoire de Paris, 92195 Meudon, France
M. KOENIG
Affiliation:
Laboratoire pour l'Utilisation des Lasers Intenses (LULI), UMR 7605, CNRS–CEA–Université Paris VI–École Polytechnique, 91128 Palaiseau Cedex, France
D. BATANI
Affiliation:
Dipartimento di Fisica “G. Occhialini,” Università di Milano–Bicocca and INFM, Via Emanueli 15, 20126 Milano, Italy
A. BENUZZI-MOUNAIX
Affiliation:
Laboratoire pour l'Utilisation des Lasers Intenses (LULI), UMR 7605, CNRS–CEA–Université Paris VI–École Polytechnique, 91128 Palaiseau Cedex, France
J.-P. CHIÈZE
Affiliation:
Commissariat à l'Énergie Atomique, DSM, 91191 Gif-sur-Yvette Cedex, France
N. GRANDJOUAN
Affiliation:
Laboratoire pour l'Utilisation des Lasers Intenses (LULI), UMR 7605, CNRS–CEA–Université Paris VI–École Polytechnique, 91128 Palaiseau Cedex, France
J. GRENIER
Affiliation:
Commissariat à l'Énergie Atomique, CESTA, BP 2, 33114 Le Barp, France
T. HALL
Affiliation:
University of Essex, Colchester CO4 3SQ, United Kingdom
E. HENRY
Affiliation:
Dipartimento di Fisica “G. Occhialini,” Università di Milano–Bicocca and INFM, Via Emanueli 15, 20126 Milano, Italy
J.-P. LAFON
Affiliation:
Département d'Astrophysique Stellaire et Galactique, Observatoire de Paris, 92195 Meudon, France
S. LEYGNAC
Affiliation:
Département d'Astrophysique Stellaire et Galactique, Observatoire de Paris, 92195 Meudon, France
V. MALKA
Affiliation:
Laboratoire pour l'Utilisation des Lasers Intenses (LULI), UMR 7605, CNRS–CEA–Université Paris VI–École Polytechnique, 91128 Palaiseau Cedex, France
B. MARCHET
Affiliation:
Département de Conception et de Réalisation des Expériences, Commissariat à l'Énergie Atomique, BP 12, 91680 Bruyères-le-Châtel, France
H. MERDJI
Affiliation:
Commissariat à l'Énergie Atomique, DSM, 91191 Gif-sur-Yvette Cedex, France
C. MICHAUT
Affiliation:
Département d'Astrophysique Stellaire et Galactique, Observatoire de Paris, 92195 Meudon, France
F. THAIS
Affiliation:
Commissariat à l'Énergie Atomique, DSM, 91191 Gif-sur-Yvette Cedex, France
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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.

Keywords

InterferometryLaser astrophysicsRadiative precursorSelf similar solutions
Type
Research Article
Information
Laser and Particle Beams , Volume 20 , Issue 2 , April 2002 , pp. 263 - 268
Copyright
© 2002 Cambridge University Press

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