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Titolo:
Scaling supernova hydrodynamics to the laboratory
Autore:
Kane, J; Arnett, D; Remington, BA; Glendinning, SG; Bazan, G; Drake, RP; Fryxell, BA; Teyssier, R; Moore, K;
Indirizzi:
Univ Arizona, Tucson, AZ 85721 USA Univ Arizona Tucson AZ USA 85721Univ Arizona, Tucson, AZ 85721 USA Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA Univ CalifLawrence Livermore Natl Lab Livermore CA USA 94550 A 94550 USA Univ Michigan, Ann Arbor, MI 48109 USA Univ Michigan Ann Arbor MI USA 48109 iv Michigan, Ann Arbor, MI 48109 USA Univ Chicago, ASCI Flash Ctr, Chicago, IL 60637 USA Univ Chicago Chicago IL USA 60637 , ASCI Flash Ctr, Chicago, IL 60637 USA Ctrte,ud Saclay Lorme des Merisiers, CEA, DSM, DAPNIA, F-91191 Gif Sur Yvet Ctr Etud Saclay Lorme des Merisiers Gif Sur Yvette France F-91191 r Yvet Harvey Mudd Coll, Claremont, CA 91711 USA Harvey Mudd Coll Claremont CA USA 91711 udd Coll, Claremont, CA 91711 USA
Titolo Testata:
PHYSICS OF PLASMAS
fascicolo: 5, volume: 6, anno: 1999,
parte:, 2
pagine: 2065 - 2071
SICI:
1070-664X(199905)6:5<2065:SSHTTL>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
RAYLEIGH-TAYLOR INSTABILITY; LINE-PROFILES; NOVA LASER; SN-1987A; DRIVEN; SHOCKS; 1987A; FLOW; PERTURBATIONS; EVOLUTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Kane, J Univ Arizona, Tucson, AZ 85721 USA Univ Arizona Tucson AZ USA 85721 iv Arizona, Tucson, AZ 85721 USA
Citazione:
J. Kane et al., "Scaling supernova hydrodynamics to the laboratory", PHYS PLASMA, 6(5), 1999, pp. 2065-2071

Abstract

Supernova (SN) 1987A focused attention on the critical role of hydrodynamic instabilities in the evolution of supernovae. To test the modeling of these instabilities, we are developing laboratory experiments of hydrodynamic mixing under conditions relevant to supernovae. Initial results were reported in J. Kane et al. [Astrophys. J. 478, L75 (1997) and B. A. Remington et al., Phys. Plasmas 4, 1994 (1997)]. The Nova laser is used to generate a 10-15 Mbar shock at the interface of a two-layer planar target, which triggers perturbation growth due to the Richtmyer-Meshkov instability, and to the Rayleigh-Taylor instability as the interface decelerates. This resembles the hydrodynamics of the He-H interface of a Type II supernova at intermediate times, up to a few X 10(3) s. The scaling of hydrodynamics on microscopiclaser scales to the SN-size scales is presented. The experiment is modeledusing the hydrodynamics codes HYADES [J. T. Larson and S. M. Lane, J. Quant. Spect. Rad. Trans. 51, 179 (1994)] and CALE [R. T. Barton, Numerical Astrophysics (Jones and Bartlett, Boston, 1985), pp. 482-497], and the supernova code PROMETHEUS [P. R. Woodward and P. Collela, J. Comp. Phys. 54, 115 (1984)]. Results of the experiments and simulations are presented. Analysis of the spike-and-bubble velocities using potential flow theory and Ott thin-shell theory is presented, as well as a study of 2D versus 3D differences in perturbation growth at the He-H interface of SN 1987A. (C) 1999 AmericanInstitute of Physics. [S1070-664X(99)93205-6].

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Documento generato il 27/11/20 alle ore 15:40:07