Formation of a flux rope inside an active region and its failed eruption

SCHMIEDER, B.; MANDRINI, C.H.; JOSHI, R.; CHANDRA, R.; CRISTIANI, G.D.; MAC CORMACK, C.

Congreso; 44th Scientific General Assembly; 2022

In the standard flare model a flux rope is formed in an active region. After reconnection of the magnetic field lines, the flux rope rises and is expelled as a coronal mass ejection and ribbons are formed at the feet of the reconnected loops. We observed such a case, just more complicated because the region AR that we observed on May 9 2020 is a quadrupolar region . We explored the data of SDO/AIA, SDO/HMI and the high resolution IRIS slit jaws . Therefore we analyzed this case to understand the formation of the flux rope and its failed eruption. The flux rope (filament) is formed by squeezed chromospheric fibrils due flux cancellation and the eruption is also due to flux cancellation. We conjecture that the failed eruption is due to the magnetic strength of large scale loops overlaying the active region and connecting with the edge of a coronal hole.