A type of mass motion in solar filaments, not previously reported, is studied with high-cadence (1 minute) Ha observations made at the Big Bear Solar Observatory on 2001 October 24. This oscillatory motion is along the filament and extends over a long distance (～1.4 x 10~5 km) with a period of ~80 minutes and a very high velocity amplitude of ～92 km s~(-1). Another significant property of this oscillation is that it is triggered by a subflare that occurred near its footpoint. The oscillation completes three cycles before it damps out over a timescale of ～210 minutes. We mainly discuss whether this oscillation is an extreme form of the recently discovered counterstreaming flows in filaments or is a form of the large-amplitude filament oscillations (known as a "winking" filament) discovered a half-century ago.
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机译：2001年10月24日在大熊太阳天文台进行的高频率（1分钟）Ha观测研究了以前未曾报道过的一种太阳灯丝质量运动。这种振荡运动沿灯丝并延伸很长一段距离。 （〜1.4 x 10〜5 km），周期为〜80分钟，极高的速度振幅为〜92 km s〜（-1）。这种振荡的另一个重要特性是，它是由在其脚点附近发生的子喇叭口触发的。振荡完成三个周期，然后在约210分钟的时间内消失。我们主要讨论这种振荡是最近发现的细丝逆流的一种极端形式，还是半个世纪前发现的大振幅细丝振荡的形式（称为“眨眼”细丝）。
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