The origin of the sudden deflections of the magnetic field, known as magnetic switchbacks, is still hotly debated. These structures, which
are omnipresent in the observations made by Parker Solar Probe (PSP), are likely to have their source in the lower corona. We investigate this hypothesis by using both in situ and remote-sensing
observations, an approach that has remained largely unexplored so far.
We analyze different types of sources and relate them to the properties of switchbacks during the solar encounters of PSP, including corotation periods when the spacecraft was connected to
one single coronal hole.
We analyze the connectivity of the switchbacks probed in situ by PSP/FIELDS and PSP/SWEAP with the events detected by solar imagers. We first rely on extrapolations of the photospheric magnetic field (using PFSS) to constraint the identification of the sources. We then study whether the events detected in situ by PSP could be statistically connected to eruptive events seen in EUV images taken by SDO/AIA and PROBA2/SWAP. The events investigated include topological boundaries that are known to favor interchange reconnection, such as small-scale loop systems in coronal holes that
can erupt and produce coronal jets.