Investigation of an X-class Flare and Quasi-Periodic Pulsations in NOAA AR 13842 using SDO, Aditya-L1 and Solar Orbiter
The study investigated an X-class flare in AR 13842 using SDO and Solar Orbiter data to link magnetic reconnection to flare activity and quasi-periodic pulsations (QPPs). Researchers used non-force-free extrapolation to map the magnetic field, revealing a flux rope ascending toward instability. They concluded that recurrent reconnection at the sheared arcade and hyperbolic flux tube drives both flare ribbons and the observed multi-periodic QPP signatures.