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Titolo:
Supernova experiments on the Nova laser
Autore:
Kane, J; Arnett, D; Remington, BA; Glendinning, SG; Bazan, G; Drake, RP; Fryxell, BA;
Indirizzi:
Univ Arizona, Steward Observ, Tucson, AZ 85721 USA Univ Arizona Tucson AZUSA 85721 na, Steward Observ, 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 NASA, GFC, Greenbelt, MD 20771 USA NASA Greenbelt MD USA 20771NASA, GFC, Greenbelt, MD 20771 USA
Titolo Testata:
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
fascicolo: 2, volume: 127, anno: 2000,
pagine: 365 - 369
SICI:
0067-0049(200004)127:2<365:SEOTNL>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
RAYLEIGH-TAYLOR INSTABILITY; LINE-PROFILES; SN-1987A; 1987A; PERTURBATIONS; HYDRODYNAMICS; SIMILARITY; SIMULATION; EVOLUTION; FRONTS;
Keywords:
hydrodynamics; instabilities; ISM : bubbles; methods : laboratory; shock waves; supernovae : individual (SN 1987A);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Kane, J Univ Arizona, Steward Observ, Mail Code L-411 LLNL, Tucson, AZ 85721 USA Univ Arizona Mail Code L-411 LLNL Tucson AZ USA 85721 AZ 85721 USA
Citazione:
J. Kane et al., "Supernova experiments on the Nova laser", ASTROPH J S, 127(2), 2000, pp. 365-369

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 by Kane et al. in a recent paper. 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 Richtmeyer-Meshkov instability, and to the Rayleigh-Taylor instability as the interface decelerates. This resemblesthe hydrodynamics of the He-H interface of a Type II supernova at intermediate times, up to a few times 10(3) s. The experiment is modeled using the hydrodynamics codes HYADES and GALE, and the supernova code PROMETHEUS. Results of the experiments and simulations are presented. We also present new analysis of the bubble velocity, a study of two-dimensional versus three-dimensional difference in growth at the He-H interface of SN 1987A, and designs for two-dimensional versus three-dimensional hydro experiments.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 08:50:03