Hydrodynamical evolution of coalescing binary neutron stars

Hydrodynamical evolution of coalescing binary neutron stars
复制标题

聚结双中子星的流体动力学演化

DOI:
10.1086/172055
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发表时间:
1992
期刊:
The Astrophysical Journal
影响因子:
--
通讯作者:
S. Shapiro
S. Shapiro
中科院分区:
--
文献类型:
--
作者:
F. Rasio;S. Shapiro

文献摘要

被引文献

相似文献

本文报道了用光滑粒子流体动力学(SPH)方法对中子星双星并合的三维牛顿计算结果。利用弛豫技术,我们建立了同步圆轨道上近距离中子星双星的流体静力平衡模型。我们使用一个简单的多方状态方程,其中Γ=2来表示冷核物质,并且我们假设质量比q=1,就像在所有已知的中子星双星系统中观察到的那样。利用SPH方法,我们研究了这些流体静力平衡模型的动力稳定性
We report the results of three-dimensional Newtonian calculations of neutron-star binary coalescence using smooth particle hydrodynamics (SPH). Using a relaxation technique, we construct hydrostatic equilibrium models of close neutron-star binaries in synchronized circular orbits. We use a simple polytropic equation of state with Γ=2 to represent cold nuclear matter, and we assume that the mass ratio q=1, as observed in all known neutron-star binary systems. Using SPH, we study the dynamical stability of these hydrostatic equilibrium models