标题： 日珥振荡的数值模拟 显示英文标题

标题： Numerical simulation of prominence oscillations

摘要： 我们使用Versatile Advection Code进行了关于反极性日珥振荡的数值模拟。内部日珥平衡、周围的日冕以及惰性光球都被很好地表现出来。未考虑重力和热力学，但认为这些并非关键因素。这种振荡可以用一个固体在等离子体中运动来理解，该固体的质量由磁场拓扑结构决定，而非日珥本身的质量。该模型还允许我们研究周围日冕等离子体对日珥运动的影响。水平振荡通过慢波辐射而衰减，垂直振荡则通过快波辐射而衰减。 显示英文摘要

摘要： We present numerical simulations, obtained with the Versatile Advection Code, of the oscillations of an inverse polarity prominence. The internal prominence equilibrium, the surrounding corona and the inert photosphere are well represented. Gravity and thermodynamics are not taken into account, but it is argued that these are not crucial. The oscillations can be understood in terms of a solid body moving through a plasma. The mass of this solid body is determined by the magnetic field topology, not by the prominence mass proper. The model also allows us to study the effect of the ambient coronal plasma on the motion of the prominence body. Horizontal oscillations are damped through the emission of slow waves while vertical oscillations are damped through the emission of fast waves.