Abstract

Solar filaments (prominences), which suddenly and swiftly ascend, i.e., become eruptive, sometimes decelerate and stop at comparatively low altitudes. Causes of failed eruptions generally remain uncertain. The present study analyzes two eruptive phenomena with very similar initial geometries and configurations of external magnetic fields; one of these eruptions evolves in a coronal mass ejection, but the other breaks off shortly after its start. The tension of curved magnetic field lines is the most probable force causing eruptions to stop. Significant external magnetic fields parallel to rope axes located in failed eruption regions can be a decisive factor. Such an effect has been revealed during laboratory experiments on plasma rope dynamics, which likely plays an important role in solar eruptive phenomena.

中文翻译：

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太阳灯丝喷发失败

摘要

太阳丝（突出）突然突然上升，即爆发，有时减速并停在相对较低的高度。喷发失败的原因通常仍然不确定。本研究分析了两种爆发现象，它们的初始几何形状和外部磁场的配置非常相似。这些爆发中的一个爆发是日冕物质抛射，但另一个爆发在爆发后不久就爆发了。弯曲磁场线的张力是最可能导致喷发停止的力。决定性因素是与位于失败喷发区域中的绳索轴平行的大量外部磁场。在实验室实验中，等离子绳动力学已揭示出这种效应，这可能在太阳喷发现象中起重要作用。