The first three years of IBEX observations and our evolving heliosphere
The first three years of IBEX observations and our evolving heliosphere
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IBEX 观测的前三年和日光层的演变
DOI：
10.1088/0067-0049/203/1/1
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发表时间：
2012
影响因子：
4.9
通讯作者：
他
中科院分区：
文献类型：
--
作者：
D.J. McComas;他
这项研究首次提供了星际边界探测器（IBEX）使命头三年（2009-2011年）的完整和有效观测。高能中性原子（ENA）通量校正的时变宇宙射线背景和轨道的生存从外日光层的途中，1 Au在IBEX观察他们的概率的轨道变化。除了显示所有六个六个月的地图，我们介绍了新的年度RAM和反RAM地图，它可以产生，而不需要依赖于算法的康普顿获得校正。这里提供的ENA地图、数据和支持性文件共同支持将这些数据完整地发布给更广泛的科学界，并为他们提供可引用的参考。此外，我们表明，日球ENA排放量一直在减少，从2009年到2011年的时间与IBEX丝带减少的最大部分，只有heliotail（这是从顺风方向的星际磁场偏移）显示基本上没有减少，实际上有些增加。最后，我们展示了这里提供的更完整的观测结果是如何强烈地表明丝带的一个相当直接和纬度相关的太阳风源。
This study provides, for the first time, complete and validated observations from the first three years (2009–2011) of the Interstellar Boundary Explorer (IBEX) mission. Energetic neutral atom (ENA) fluxes are corrected for both the time-variable cosmic ray background and for orbit-by-orbit variations in their probability of surviving en route from the outer heliosphere in to 1 AU where IBEX observes them. In addition to showing all six six-month maps, we introduce new annual ram and anti-ram maps, which can be produced without the need for algorithm-dependent Compton–Getting corrections. Together, the ENA maps, data, and supporting documentation presented here support the full release of these data to the broader scientific community and provide the citable reference for them. In addition, we show that heliospheric ENA emissions have been decreasing over the epoch from 2009 to 2011 with the IBEX Ribbon decreasing by the largest fraction and only the heliotail (which is offset from the down wind direction by the interstellar magnetic field) showing essentially no reduction and actually some increase. Finally, we show how the much more complete observations provided here strongly indicate a quite direct and latitude-dependent solar wind source of the Ribbon.