Two successive EUV waves and a transverse oscillation of a quiescent prominence
Abstract
In this paper, we carry out multiwavelength observations of two successive extreme-ultraviolet (EUV) waves originating from active region (AR) NOAA 13575 and a transverse oscillation of a columnar quiescent prominence on 2024 February 9. A hot channel eruption generates an X3.4 class flare and the associated full-halo coronal mass ejection (CME), which drives the first EUV wave front (WF1) at a speed of 835 km s-1. WF1 propagates in the southeast direction and interacts with the prominence, causing an eastward displacement of the prominence immediately. Then, a second EUV wave front (WF2) is driven by a coronal jet at a speed of 831 km s-1. WF2 follows WF1 and decelerates from 788 km s-1 to 603 km s-1 before arriving at and touching the prominence. After reaching the maximum displacement, the prominence turns back and swings for 1-3 cycles. The transverse oscillation of horizontal polarization is most evident in 304 . The initial displacement amplitude, velocity in the plane of the sky, period, and damping time fall in the ranges of 12-34 Mm, 65-143 km s-1, 18-27 minutes, and 33-108 minutes, respectively. There are strong correlations among the initial amplitude, velocity, period, and height of the prominence. Surprisingly, the oscillation is also detected in 1600 , which is totally in phase with that in 304 .
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