Two successive EUV waves and a transverse oscillation of a quiescent prominence

Q. M. Zhang, M. S. Lin, X. L. Yan, J. Dai, Z. Y. Hou, Y. Li, Y. Qiu

Published 2024-08-07Version 1

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 $\sim$835 km s$^{-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 $\sim$831 km s$^{-1}$. WF2 follows WF1 and decelerates from $\sim$788 km s$^{-1}$ to $\sim$603 km s$^{-1}$ before arriving at and touching the prominence. After reaching the maximum displacement, the prominence turns back and swings for 1$-$3 cycles. The transverse oscillation of horizontal polarization is most evident in 304 {\AA}. The initial displacement amplitude, velocity in the plane of the sky, period, and damping time fall in the ranges of 12$-$34 Mm, 65$-$143 km s$^{-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 {\AA}, which is totally in phase with that in 304 {\AA}.