Data-driven MHD Simulation of Successive Solar Plasma Eruptions

Solar flares and plasma eruptions are sudden releases of magnetic energy stored in the atmosphere. To understand physical mechanisms governing their occurrences, three-dimensional fields from photosphere up to corona must be studied. The solar photospheric observable, whereas coronal cannot measured. One method for inferring is performing data-driven simulations, which involves time-series observational data with bottom boundary magnetohydrodynamic simulations. We developed a temporal evolutions vector field can reproduced at simulation by introducing an inverted velocity field. This obtained inversely solving induction equation applying appropriate gauge transformation. Using this method, we performed successive small observed Dynamics Observatory Magnetic Activity Telescope November 2017. well converging motion between opposite-polarity patches, demonstrating formation helical flux ropes.