论文标题
首次比较IBEX和Cassini/INCA观察到的0.52-55 KEV ENA光谱与质子混合模拟推断的模拟ENA在终止冲击的下游推断
First comparison of composite 0.52-55 keV ENA spectra observed by IBEX and Cassini/INCA with simulated ENAs inferred by proton hybrid simulations downstream of the termination shock
论文作者
论文摘要
我们提出了对高能中性原子（ENA）螺旋壳测量值的首次比较，该测量值是由星际边界探索器（IBEX）任务（IBEX）任务以及Cassini任务上的离子和中性摄像机（INCA）遥感的，并从模型的ENA中推断出了从杂种式仿真的星际拾音器中推断出来的，这些eNA被驱逐了。观察到的ENA强度是从2009年到2012年底沿着Voyager 2轨迹的时间段的平均值。太阳风，星际拾音离子（PUI）和磁场上游的磁场的混合模拟参数基于观察结果。我们报告了观察到的ENA通量和观察到的ENA通量，始终高于模拟的ENA通量之间的依赖能量差异，并讨论了这种差异的可能原因。
We present a first comparison of Energetic Neutral Atom (ENA) heliosheath measurements, remotely sensed by the Interstellar Boundary Explorer (IBEX) mission and the Ion and Neutral Camera (INCA) on the Cassini mission, with modeled ENA inferred from interstellar pickup protons that have been accelerated at the termination shock, using hybrid simulations. The observed ENA intensities are an average value over the time period from 2009 to the end of 2012, along the Voyager 2 trajectory. The hybrid simulations parameters for the solar wind, interstellar pickup ions (PUIs), and magnetic field upstream of the termination shock, where Voyager 2 crossed, are based on observations. We report an energy dependent discrepancy between observed and simulated ENA fluxes, with the observed ENA fluxes, being consistently higher than the simulated ones, and discuss possible causes of this discrepancy.
