INTERSTELLAR BOUNDARY EXPLORER MEASUREMENTS AND MAGNETIC FIELD IN THE VICINITY OF THE HELIOPAUSE
INTERSTELLAR BOUNDARY EXPLORER MEASUREMENTS AND MAGNETIC FIELD IN THE VICINITY OF THE HELIOPAUSE
复制标题
星际边界探测器测量和日球层顶附近的磁场
DOI：
10.1088/0004-637x/742/2/104
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
D. McComas
中科院分区：
文献类型：
--
作者：
N. Pogorelov;J. Heerikhuisen;G. Zank;S. Borovikov;P. Frisch;D. McComas
星际边界探测器（IBEX）高能中性原子（ENA）通量的全天图与旅行者号的现场测量相结合，为了解太阳风与当地星际介质相互作用的物理学提供了一个独特的机会。IBEX的第一个结果揭示了一个跨越天空的“带状”意想不到的强烈排放的ENA，这是以前没有任何物理模型预测的。人们提出了许多解释来解释IBEX带状物，其中一些与太阳层顶的星际磁场分布（ISMF）和行星际磁场耦合有关。带状物在天空中的位置与垂直于建模ISMF的视线方向相关。在本文中，我们分析了各种ISMF强度和方向的分布，以揭示可能包含ENA源创建的带状表面的拓扑结构。我们还分析了由于ISMF的覆盖作用，日球顶上的总压分布。讨论了太阳周期变化对带状拓扑结构的影响。
The combination of the Interstellar Boundary Explorer (IBEX) all-sky maps of the energetic neutral atom (ENA) fluxes with the Voyager in situ measurements provides a unique opportunity to learn about the physics governing the solar wind interaction with the local interstellar medium. The first IBEX results revealed a sky-spanning “ribbon” of unexpectedly intense emissions of ENAs that had not been predicted previously by any physical model. A number of explanations were proposed to explain the IBEX ribbon, some of them associated with the distribution of the interstellar magnetic field (ISMF) coupled with the interplanetary magnetic field at the heliopause. The position of the ribbon in the sky correlates with the line-of-sight directions perpendicular to the modeled ISMF. In this paper, we analyze such distributions for a variety of ISMF strengths and directions in order to reveal the topology of the surface that may potentially contain the ENA sources creating the ribbon. We also analyze the distributions of total pressure exerted on the heliopause as a result of its draping by the ISMF. The effects of solar cycle variations on the ribbon topology are discussed.