Jovian Broadband Kilometric auroral radio emissions with in situ Juno measurements

In the vast array of Jovian auroral radio emissions, the broadband kilometric (bKOM) component (10-300 kHz) has received comparatively less research attention. Utilizing Juno in situ measurements within the auroral regions, a survey of Juno/Waves radio observations over the first 60 orbits was conducted to identify seven bKOM source candidates. These candidates were predominantly detected during dawn storm auroral episodes (four out of seven) and three were found to be colocated with auroral cavities. A subsequent growth rate analysis, employing JADE-E electron measurements, revealed that the observed waves were driven by the Cyclotron Maser Instability from two free energy sources. The primary emission manifested above the electron gyrofrequency ($f_{ce}$) and was amplified by conics-type electron distribution functions (EDF) with 2 to 30~keV electron characteristic energies. Sporadic bursts, produced slightly below $f_{ce}$, are driven by shell-type EDF of 0.1 to 10~keV.A comparative analysis of these results with those obtained previously for Jovian hectometric and decametric emissions is also presented.