Gibson Sarah E
National Center for Atmospheric Research, 3080 Center Green Dr., Boulder, USA.
Living Rev Sol Phys. 2018;15(1):7. doi: 10.1007/s41116-018-0016-2. Epub 2018 Oct 22.
Magnetic fields suspend the relatively cool material of solar prominences in an otherwise hot corona. A comprehensive understanding of solar prominences ultimately requires complex and dynamic models, constrained and validated by observations spanning the solar atmosphere. We obtain the core of this understanding from observations that give us information about the structure of the "magnetic skeleton" that supports and surrounds the prominence. Energetically-sophisticated magnetohydrodynamic simulations then add flesh and blood to the skeleton, demonstrating how a thermally varying plasma may pulse through to form the prominence, and how the plasma and magnetic fields dynamically interact.
磁场将相对较冷的日珥物质悬浮在原本炽热的日冕中。对日珥的全面理解最终需要复杂的动态模型,这些模型要受到跨越太阳大气的观测数据的约束和验证。我们从观测中获得了这种理解的核心内容,这些观测为我们提供了有关支撑和环绕日珥的“磁骨架”结构的信息。然后,能量复杂的磁流体动力学模拟为这个骨架增添了血肉,展示了温度变化的等离子体如何脉动形成日珥,以及等离子体和磁场如何动态相互作用。