Supernova experiments on the Nova laser

被引：0

作者：

Kane, J ^{[1
]}

Arnett, D ^{[1
]}

Remington, BA ^{[1
]}

Glendinning, SG ^{[1
]}

Wallace, R ^{[1
]}

Rubenchik, A ^{[1
]}

Fryxell, BA ^{[1
]}

机构：

[1] Univ Arizona, Tucson, AZ 85721 USA

来源：

STELLAR EVOLUTION, STELLAR EXPLOSIONS AND GALACTIC CHEMICAL EVOLUTION | 1998年

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 [1]. 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 experiment is modeled using the hydrodynamics codes HYADES and GALE, and the supernova code PROMETHEUS. Results of the experiments and simulations are presented. New analysis of the bubble velocity is presented, as well as a study of 2D vs. 3D difference in growth at the He-II interface of SN 1987A.

引用

页码：657 / 661

页数：5