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Titolo:
An experimental testbed for the study of hydrodynamic issues in supernovae
Autore:
Robey, HF; Kane, JO; Remington, BA; Drake, RP; Hurricane, OA; Louis, H; Wallace, RJ; Knauer, J; Keiter, P; Arnett, D; Ryutov, DD;
Indirizzi:
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 48105 USA Univ Michigan Ann Arbor MI USA 48105 iv Michigan, Ann Arbor, MI 48105 USA Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA Univ RochesterRochester NY USA 14623 nerget Lab, Rochester, NY 14623 USA Univ Arizona, Tucson, AZ USA Univ Arizona Tucson AZ USAUniv Arizona, Tucson, AZ USA
Titolo Testata:
PHYSICS OF PLASMAS
fascicolo: 5, volume: 8, anno: 2001,
parte:, 2
pagine: 2446 - 2453
SICI:
1070-664X(200105)8:5<2446:AETFTS>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
OMEGA-LASER-SYSTEM; RICHTMYER-MESHKOV INSTABILITY; RAYLEIGH-TAYLOR; INTENSE LASERS; BLAST WAVES; SHOCK-WAVES; GROWTH; SN-1987A; PERTURBATIONS; ASTROPHYSICS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
61
Recensione:
Indirizzi per estratti:
Indirizzo: Robey, HF Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA Univ Calif Lawrence Livermore Natl Lab Livermore CA USA 94550 A
Citazione:
H.F. Robey et al., "An experimental testbed for the study of hydrodynamic issues in supernovae", PHYS PLASMA, 8(5), 2001, pp. 2446-2453

Abstract

More than a decade after the explosion of supernova 1987A, unresolved discrepancies still remain in attempts to numerically simulate the mixing processes initiated by the passage of a very strong shock through the layered structure of the progenitor star. Numerically computed velocities of the radioactive Ni-56 and Co-56, produced by shock-induced explosive burning withinthe silicon layer, for example, are still more than 50% too low as compared with the measured velocities. To resolve such discrepancies between observation and simulation, an experimental testbed has been designed on the Omega Laser for the study of hydrodynamic issues of importance to supernovae (SNe). In this paper, results are presented from a series of scaled laboratory experiments designed to isolate and explore several issues in the hydrodynamics of supernova explosions. The results of the experiments are compared with numerical simulations and are generally found to be in reasonable agreement. (C) 2001 American Institute of Physics.

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Documento generato il 28/11/20 alle ore 03:09:04