论文标题
磁芯中的双极扩散速度和磁场演化：广义理论方法
Ambipolar diffusion velocity and magnetic field evolution in magnetar core: Generalised theoretical approach
论文作者
论文摘要
通常认为与中子恒星相关的磁场被螺纹在恒星内。在存在磁场的情况下，恒星内部存在的血浆经历了导致磁场演化的几个过程。据认为，磁性活动主要是由于田间衰减。恒星核心内部最重要的场衰减过程是内部等离子体中存在的带电颗粒的双极性扩散。在当前磁场的影响下，由于双极扩散引起的衰减速率直接连接到带电颗粒的双极速度。带电颗粒的双极速度取决于颗粒的内部动力学。我们概述了一种在磁场存在下使用磁性水力动力方程在磁场存在下解决粒子动力学的一般方法。该方程是一般的，适用于所有可能的周围条件\ EG温度，并且物质状态如正常或超氟。
The magnetic field associated with neutron stars is generally believed to be threaded inside the star. In the presence of a magnetic field, the plasma present in the interior of the star goes through several processes that lead to magnetic field evolution. It is thought that magnetar activities are mainly due to field decay. The most important process of field decay inside the core of the star is the ambipolar diffusion of the charged particles present in the interior plasma. The decay rate due to ambipolar diffusion is directly connected to the ambipolar velocity of the charged particles under the influence of the present magnetic field. The ambipolar velocity of the charged particles depends on the internal dynamics of the particles. We outline a general method to solve the particle dynamics in the presence of a magnetic field using a magnetohydrodynamic equation for ambipolar velocity. The equation is general and applies to all possible surrounding conditions \eg temperature, and matter states like normal or superfluid.
