Recurrent Two-Sided Loop Jets Triggered by Magnetic Reconnection between Adjacent Filament Threads

The observations from the Solar Dynamics Observatory (SDO), characterized by high temporal and spatial resolution, were used to perform a detailed analysis of a series of recurrent bidirectional jet events originating from the same source region. The results show that the jet was closely associated with the interaction between two small-scale, adjacent dark filaments and the magnetic reconnection occurring in the jet source region. The observations reveal that the neighboring ends of the two filaments were rooted in magnetic polarities of opposite signs within the source region. As the filaments gradually approached each other, a pronounced brightening patch appeared in their interaction region. Subsequently, a pair of hot plasma jets propagated in opposite directions along the two filamentary structures, exhibiting typical bidirectional jet characteristics. Combined analyses indicate that the formation mechanism of the observed bidirectional jet is consistent with the recently proposed model in which magnetic reconnection between adjacent filaments plays a key role. This mechanism differs from the traditional scenario, where bidirectional jets are mainly triggered by reconnection between an emerging dipole and the overlying horizontal magnetic field.