Quasilinear Wave-Particle Analysis in the Source Region of Jovian Kilometric Radio Emission

This is the supporting data set for the paper by the same title published in AGU JGR Space Physics. Key Points: Upward-traveling electron loss-cone distribution together with counter-streaming electron beam and hot protons are detected in bKOM source region. Kilometric emission is measured accompanied by ion-cyclotron frequency range emission and weak whistler mode-like signature. The observed wave spectra and particle characteristics are modeled by employing quasilinear wave-particle analysis. Abstract Jovian broadband kilometric emission (bKOM) is observed by the Juno spacecraft within a source region in the northern hemisphere near the equatorward edge of the auroral oval. A well-developed upward loss cone is the free-energy source of the bKOM. The spacecraft also detected intense low-energy (few hundred eV) counter-streaming electrons which are known to generate whistler mode emission via Landau resonance. In addition, hot protons (tens of keV thermal energy) accompanied by Alfvénic low-frequency emissions are also frequently detected in these source regions. We use quasilinear analysis to examine the generation and growth of bKOM and the dynamics of wave-particle interaction of the electron beams with bKOM and the growth of whistler mode and Z-mode emission. We also carry out quasilinear analysis of protons interacting with the low-frequency modes that coexist in the bKOM source region. The comprehensive quasilinear wave-particle analysis involving the energetic loss-cone electrons and high-frequency bKOM emission; counter-streaming electron beams and low-frequency/low-intensity electrostatic modes, and hot protons and Alfvén/proton-cyclotron wave emission, are shown to be quite successful in explaining/replicating the observed wave emission characteristics and various charged-particle properties.本数据集为发表于美国地球物理联合会（AGU）旗下《地球物理研究杂志：空间物理学》（JGR Space Physics）的同名论文配套数据集。 核心要点： 1. 在宽频千米辐射（bKOM）源区中，观测到上行电子损失锥分布、反向流动电子束与热质子共存。 2. 本次观测到千米辐射的同时，还伴随有离子回旋频段辐射与类哨声模弱特征信号。 3. 本研究采用准线性波粒分析方法，对观测到的波谱与粒子特性进行建模。 摘要： 朱诺号（Juno）航天器在北半球极光椭圆赤道向边缘附近的源区内，观测到木星宽频千米辐射（bKOM）。发育完善的上行损失锥结构是bKOM产生的自由能来源。该航天器同时探测到强流低能（数百电子伏特）反向流动电子，这类电子可通过朗道共振激发哨声模辐射。此外，在这类源区内还常观测到热质子（热能量约数十千电子伏特）与阿尔文低频辐射共存。 本研究采用准线性分析方法，探究bKOM的产生与增长过程、电子束与bKOM之间的波粒相互作用动力学，以及哨声模与Z模辐射的增长机制。同时，我们还针对bKOM源区内共存的低频模与质子的相互作用开展准线性分析。本次所采用的综合准线性波粒分析涵盖了高能损失锥电子与高频bKOM辐射、反向流动电子束与低频/低强度静电模，以及热质子与阿尔文/离子回旋波辐射的相互作用过程，该分析方法可成功解释并复现观测到的波辐射特性与各类带电粒子参数。