Data analysis and model studies on ultraviolet aurorae in Jupiter and the icy moon

Jupiter’s polar regions exhibit auroral emissions with complex structures. The “footprint aurora” associated with Europa is a signature of the plasma environment around Europa. Using the observations of the footprint aurora made by the Hubble Space Telescope, I detected temporal variations in the plasma mass density and temperature around Europa. Currently, I am continuing my research using the high spatial resolution data obtained by the Juno spacecraft. A detailed investigation of the footprint aurora will lead to a deeper understanding of the plasma environment surrounding Europa.