论文标题
使用MGMR3D确定大气电场
Determining Atmospheric Electric Fields using MGMR3D
论文作者
论文摘要
撞击大气上的宇宙射线颗粒会在空气中引起高能粒子级联反应，这是一个广泛的空气淋浴（EAS），发射相干的无线电发射。在雷暴条件下，这种发射受强场存在的影响。为了从EA的测得的无线电足迹重建大气电场，我们使用分析模型来计算无线电发射MGMR3D。在这项工作中，我们对无线电发射模型的结果进行了广泛的比较，以在存在大气电场的情况下获得MGMR3D的改进的参数化以及置信区间。提取电场结构的方法成功地应用于在雷雨条件下由洛法测得的复杂无线电脚印的事件。这表明，通过改进的参数化，MGMR3D可用于提取大气电场的结构。
Cosmic-ray particles impinging on the atmosphere induce high-energy particle cascades in air, an Extensive Air Shower (EAS), emitting coherent radio emission. This emission is affected by the presence of strong electric fields during thunderstorm conditions. To reconstruct the atmospheric electric field from the measured radio footprint of the EAS we use an analytic model for the calculation of the radio emission, MGMR3D. In this work we make an extensive comparison between the results of a microscopic model for radio emission, CoREAS, to obtain an improved parametrization for MGMR3D in the presence of atmospheric electric fields, as well as confidence intervals. The approach to extract the electric field structure is applied successfully to an event with a complicated radio footprint measured by LOFAR during thunderstorm conditions. This shows that, with the improved parametrization, MGMR3D can be used to extract the structure of the atmospheric electric field.
