skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Interaction of Supernova Blast Waves with Interstellar Clouds: Experiments on the Omega Laser

Abstract

The interaction of strong shock waves, such as those generated by the explosion of supernovae with interstellar clouds, is a problem of fundamental importance in understanding the evolution and the dynamics of the interstellar medium (ISM) as it is disrupted by shock waves. The physics of this essential interaction is critical to understanding the evolution of the ISM, the mixing of interstellar clouds with the ISM and the viability of this mechanism for triggered star formation. Here we present the results of a series of new OMEGA laser experiments investigating the evolution of a high density sphere embedded in a low density medium after the interaction of a strong shock wave, thereby emulating the supernova shock-cloud interaction. The interaction is viewed from two orthogonal directions enabling visualization of the both the initial distortion of the sphere into a vortex ring as well as the onset of an azimuthal instability that ultimately results in the three-dimensional breakup of the ring. These studies augment previous studies [1,2] on the NOVA laser by enabling the full three-dimensional topology of the interaction to be understood. We show that the experimental results for the vortex ring are in remarkable agreement with the incompressible theory ofmore » Widnall [3]. Implications for mixing in the ISM are discussed.« less

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
15006510
Report Number(s):
UCRL-JC-143853
TRN: US0400838
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Second International Conference on Inertial Fusion Science and Applications, Kyoto (JP), 09/09/2001--09/14/2001; Other Information: PBD: 17 Aug 2001
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 74 ATOMIC AND MOLECULAR PHYSICS; CLOUDS; EXPLOSIONS; INSTABILITY; LASERS; PHYSICS; SHOCK WAVES; STARS; SUPERNOVAE; TOPOLOGY; VIABILITY

Citation Formats

Klein, R I, Robey, H F, Perry, T S, Kane, J O, Greenough, J A, and Marinak, M M. Interaction of Supernova Blast Waves with Interstellar Clouds: Experiments on the Omega Laser. United States: N. p., 2001. Web.
Klein, R I, Robey, H F, Perry, T S, Kane, J O, Greenough, J A, & Marinak, M M. Interaction of Supernova Blast Waves with Interstellar Clouds: Experiments on the Omega Laser. United States.
Klein, R I, Robey, H F, Perry, T S, Kane, J O, Greenough, J A, and Marinak, M M. Fri . "Interaction of Supernova Blast Waves with Interstellar Clouds: Experiments on the Omega Laser". United States. https://www.osti.gov/servlets/purl/15006510.
@article{osti_15006510,
title = {Interaction of Supernova Blast Waves with Interstellar Clouds: Experiments on the Omega Laser},
author = {Klein, R I and Robey, H F and Perry, T S and Kane, J O and Greenough, J A and Marinak, M M},
abstractNote = {The interaction of strong shock waves, such as those generated by the explosion of supernovae with interstellar clouds, is a problem of fundamental importance in understanding the evolution and the dynamics of the interstellar medium (ISM) as it is disrupted by shock waves. The physics of this essential interaction is critical to understanding the evolution of the ISM, the mixing of interstellar clouds with the ISM and the viability of this mechanism for triggered star formation. Here we present the results of a series of new OMEGA laser experiments investigating the evolution of a high density sphere embedded in a low density medium after the interaction of a strong shock wave, thereby emulating the supernova shock-cloud interaction. The interaction is viewed from two orthogonal directions enabling visualization of the both the initial distortion of the sphere into a vortex ring as well as the onset of an azimuthal instability that ultimately results in the three-dimensional breakup of the ring. These studies augment previous studies [1,2] on the NOVA laser by enabling the full three-dimensional topology of the interaction to be understood. We show that the experimental results for the vortex ring are in remarkable agreement with the incompressible theory of Widnall [3]. Implications for mixing in the ISM are discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {8}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: