论文标题
Heliosperic Energetic中性原子：非平稳建模和与IBEX-HI数据的比较
Heliospheric Energetic Neutral Atoms: Non-stationary Modeling and Comparison with IBEX-Hi data
论文作者
论文摘要
自2008年以来，使用IBEX-HI（0.3-6 KEV）仪器来测量能量中性原子（ENA）的通量。我们已经开发了一种数值的时间养成代码，以开发出一项数值的时间养成的代码，以计算全球分布的通量（GDF）的氢eNAS（GDF）的氢ENA和两者的3D kin eNAS的3D kin-mhd Models and，从1个AU（IBEX观察到它们的起源）中的1个AU的轨迹（IHS）。模拟中的关键因素是对拾音离子（PUI）的详细动力学考虑，这是地球层中质子的上部 - 热成分，这是埃纳斯的“父母”，起源于Heliospheric磁场在超音速太阳风的区域中。作为我们的研究的结果，我们得出的结论是，（1）开发的模型能够重现Ibex-Hi GDF地图中多型单车结构的几何形状，（2）GDF对IHS中PUI的速度分布函数的形式非常敏感，尽管IHS的速度分布函数以及该数据的存在，但PUIS的存在均与PUIS的存在相关性（PUIS）的存在，而PU的同时是PUIS的一致性，而PU的同时是PUIS的一致性。是模型计算和IBEX-HI数据之间的一些定量差异。讨论了这些差异的可能原因。
The Interstellar Boundary Explorer (IBEX) has been measuring fluxes of the Energetic Neutral Atoms (ENAs) using the IBEX-Hi (0.3 -- 6 keV) instrument since 2008. We have developed a numerical time-depended code to calculate globally distributed flux (GDF) of hydrogen ENAs employing both 1) 3D kinetic-MHD model of the global heliosphere and 2) reconstruction of atom trajectories from 1 au, where they are observed by IBEX, to the point of their origin in the inner heliosheath (IHS). The key factor in the simulation is a detailed kinetic consideration of the pickup ions (PUIs), the supra-thermal component of protons in the heliosphere, which is "parental" to the ENAs and originates in the region of the supersonic solar wind being picked by the heliospheric magnetic field. As a result of our study, we have concluded that (1) the developed model is able to reproduce the geometry of the multi-lobe structure seen in the IBEX-Hi GDF maps, (2) the GDF is extremely sensitive to the form of the velocity distribution function of PUIs in the IHS, and the accounting for the existence of an additional energetic population of PUIs is essential to explain the data, (3) despite a relatively good agreement, there are some quantitative differences between the model calculations and IBEX-Hi data. Possible reasons for these differences are discussed.
