Electron microburst precipitation has been shown to have significant potential for depletion of the outer radiation belt. We present observations from the Balloon Array for Radiation belt Relativistic Electron Losses (BARREL) of six (five unique and one dual-balloon observation) microburst events, each containing minutes to hours of persistent microbursts. We find that each event included a slowly-varying smooth precipitation component underlying the bursty component. The smooth component has not yet been fully characterized in the literature; we have written a program to identify microburst events and quantify the relative contributions of each component in the BARREL data. In all six events analyzed, the smooth component contributed more to the total X-ray counts measured, indicating that the smooth component could contribute significantly to radiation belt loss.

中文翻译：

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具有缓慢变化分量的微爆事件的 BARREL 观测

电子微爆降水已被证明具有消耗外辐射带的巨大潜力。我们展示了辐射带相对论电子损失气球阵列 (BARREL) 的六个（五个独特观测和一个双气球观测）微爆发事件的观测结果，每个事件都包含几分钟到几小时的持续微爆发。我们发现每个事件都包含在突发分量之下的缓慢变化的平滑降水分量。文献中尚未对光滑成分进行充分表征；我们编写了一个程序来识别微爆事件并量化 BARREL 数据中每个组件的相对贡献。在分析的所有六个事件中，平滑成分对测量的总 X 射线计数的贡献更大，表明平滑成分可能对辐射带损失产生显着影响。