An Investigation of the Loop Oscillations after a Solar Flare
We study the loop oscillations after a solar flare on 19 January 2023, in the active region N11E40 3196, which is well observed by the SDO/AIA.After tracing the loop position and fitting, we find that the loop oscillations have a Toners period between 3 and 9 min at various locations, such as from the leg to the top or from the inner to the outer l