Large-amplitude Oscillations of a Quiescent Filament Excited by an Extreme-ultraviolet Wave

In this paper, we carry out multiwavelength observations of simultaneous longitudinal and transverse oscillations of a quiescent filament excited by an extreme-ultraviolet (EUV) wave on 2023 February 17. A hot channel eruption generates an X2.3 class flare and a fast coronal mass ejection (CME) in active region (AR) NOAA 13229 close to the eastern limb. The CME drives an EUV wave, which propagates westward at a speed of ∼459 km s−1. After arriving at the filament ∼340.3 Mm away from the flare site, the filament is disturbed and starts large-amplitude oscillations, which are mainly observed in 171 Å. The longitudinal oscillations last for nearly two cycles. The average initial amplitude, velocity, period, and damping time are ∼4.7 Mm, ∼26.5 km s−1, ∼1099.1 s, and ∼2760.3 s, respectively. According to the pendulum model, the curvature radius and minimum horizontal magnetic field strength of the dips are estimated to be 6.7−9.9 Mm and 4.6−5.6 G. The transverse oscillations last for 2−3 cycles. The average initial amplitude, velocity, period, and damping time are ∼1.8 Mm, ∼11.2 km s−1, ∼994.4 s, and ∼3576.2 s, respectively. The radial magnetic field strength of the dips are estimated to be 6.6–7.4 G.