论文标题
两流等离子体不稳定性，作为粒子从维纳斯离子层逃脱的潜在机制
Two-stream Plasma Instability as a Potential Mechanism for Particle Escape from the Venusian Ionosphere
论文作者
论文摘要
在这项工作中，我们研究了金星大气中两流不稳定性的可能性，导致动量转移到随后从电离层逃离氢和氧离子。我们采用流体动力学模型，并获得了研究两流不稳定性的线性分散关系。此外，已经研究了来自不稳定性的维纳斯电离层离子的相互作用，并已研究了来自金星快递（VEX）的Aspera-4的数据。数据支持这样一个事实，即两流不稳定性可以提供足够的能量来加速离子以避免行星的速度。
In this work we investigate the possibility of two-stream instability in the Venusian atmosphere to lead to momentum transfer to subsequent escape of Hydrogen and Oxygen ions from the ionosphere. We employ the hydrodynamic model and obtain the linear dispersion relation from which the two-stream instability is studied. Further the interaction of solar wind with the ions of Venus ionosphere from which the instability sets in, has been studied with the data from ASPERA-4 of Venus Express (VEX). The data supports the fact that the two-stream instability can provide sufficient energy to accelerate ions to escape velocity of the planet.
