Temporal and Spatial Variations of Heliospheric x-ray Emissions Associated with Charge Transfer of the Solar Wind with Interstellar Neutrals
Temporal and Spatial Variations of Heliospheric x-ray Emissions Associated with Charge Transfer of the Solar Wind with Interstellar Neutrals
复制标题
与太阳风与星际中性子的电荷转移相关的日光层 X 射线发射的时空变化
DOI：
10.1023/a:1011822327202
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发表时间：
2001
影响因子：
10.3
通讯作者：
T. Linde
中科院分区：
文献类型：
--
作者：
I. Robertson;T. Cravens;S. Snowden;T. Linde
一个简单的模型表明，日球层X射线辐射可以占观测到的软X射线背景强度的25%-50%。类似于彗星的软X射线发射，这些X射线被认为是在日光层中由于重太阳风离子和星际中性粒子之间的电荷转移碰撞而产生的。现在已经开发出一个更复杂的模型，以考虑到太阳风和星际中性粒子的时空变化。测量的太阳风质子通量的时间历程中使用的模型和结果进行了比较与“长期增强”的软X射线背景测量ROSAT为同一时期。
A simple model has been developed that demonstrates that heliospheric X-ray emission can account for about 25%–50% of observed soft X-ray background intensities. Similar to cometary soft X-ray emission, these X-rays are thought to be produced in the heliosphere due to charge transfer collisions between heavy solar wind ions and interstellar neutrals. A more complex model has now been developed to take into account temporal and spatial variations of the solar wind and interstellar neutrals. Measured time histories of the solar wind proton flux are used in the model and the results are compared with the ‘long-term enhancements’ in the soft X-ray background measured by ROSAT for the same time period.