Jets in Planetary Magnetosheath

Abstract The study of jets in the Earth's magnetosheath has been a subject of extensive investigation for over a decade due to their profound impact on the geomagnetic environment and their close connection with shock dynamics. While the variability of the solar wind and its interaction with Earth's magnetosphere provide valuable insights into jets across a range of parameters, a broader parameter space can be explored by examining the magnetosheath of other planets. Here we report the existence of anti-sunward and sunward jets in the Jovian and Kronian magnetosheath and show their close association to magnetic discontinuities. The anti-sunward jets are possibly generated by a shock—discontinuity interaction. Finally, through a comparative analysis of jets observed at Earth, Mars, Jupiter, and Saturn, we show that the size of jets scales with the size of bow shock.