Microphysics of Jovian bow shock - a plasma wave perspective.

Until now, in-depth analysis of the microphysics associated with high Mach number astrophysical bow shocks has not been feasible. Although previous spacecraft have passed through the bow shocks of outer planets, their onboard instruments were not equipped or designed to capture high-resolution data focused on the shock, which spans several electron inertial lengths. However, beginning in late 2024, an enhanced algorithm on Juno enabled high-resolution observations of Jupiter's bow shock. This paper details the initial observations of plasma waves in the vicinity of the shock, which encompass lower hybrid waves, electron cyclotron drift instability, electrostatic solitary waves, and Langmuir waves. Additionally, we present magnetic field and particle data to provide a comprehensive understanding of the phenomena.