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

TL;DR

This study observes two successive EUV waves from active region NOAA 13575 and their impact on a quiescent prominence, revealing detailed dynamics and oscillation characteristics through multiwavelength data.

Contribution

It provides new insights into the interaction between successive EUV waves and prominences, including the detection of transverse oscillations in multiple wavelengths and their correlated parameters.

Findings

Two EUV waves with speeds around 830 km/s driven by an eruption and a jet.

The prominence exhibits transverse oscillations with periods of 18-27 minutes.

Oscillations are observed in both 304 Å and 1600 Å, in phase.

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 $\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}.