English

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

Solar and Stellar Astrophysics 2024-08-08 v1

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 \sim835 km s1^{-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 \sim831 km s1^{-1}. WF2 follows WF1 and decelerates from \sim788 km s1^{-1} to \sim603 km s1^{-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 s1^{-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}.

Keywords

Cite

@article{arxiv.2408.03634,
  title  = {Two successive EUV waves and a transverse oscillation of a quiescent prominence},
  author = {Q. M. Zhang and M. S. Lin and X. L. Yan and J. Dai and Z. Y. Hou and Y. Li and Y. Qiu},
  journal= {arXiv preprint arXiv:2408.03634},
  year   = {2024}
}

Comments

8 pages, 11 figures, accepted for publication in MNRAS