Propagating Kink Waves in Chromospheric Jetlike Structures and Coronal Plumelets

Abstract Coronal plumes and chromospheric jetlike structures are believed to be highly dynamic. We report the first direct observations of a propagating kink wave in a chromospheric jetlike structure and its associated plumelet structure in the upper corona of the solar polar region, using data from the High Resolution Imager of the Extreme Ultraviolet Imager on board Solar Orbiter. The dark jetlike structure exhibits transverse oscillation during upward propagation, with a period of approximately 95 s and a displacement of about 193 km. The corresponding plumelet also displays transverse motion, with an oscillation period of around 99 s and a displacement of about 315 km. Given that both the dark jetlike structure and the plumelet share the same magnetic skeleton and have similar oscillation period, we suggest that these oscillations are the same transverse propagating wave originating in the chromosphere. This scenario is further supported by a 3D magnetohydrodynamic (MHD) simulation, in which both vertical and transverse perturbations were introduced in a stratified magnetic flux tube. The simulation successfully reproduces the upward propagation of a kink wave through both the chromospheric jetlike structure and the coronal plumelet. These results highlight the potential role of transverse waves in transferring energy from the lower solar atmosphere to the corona.