Effects of solar flares on the ionosphere of Mars
Effects of solar flares on the ionosphere of Mars
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DOI：
10.1126/science.1122099
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发表时间：
2006-02-24
期刊：
影响因子：
56.9
通讯作者：
Reinisch, B
中科院分区：
文献类型：
--
作者：
Mendillo, M;Withers, P;Reinisch, B
所有行星大气层都会对耀斑期间太阳发出的增强 X 射线和紫外线 (UV) 做出反应。然而，只有在地球上，观测才能如此连续，才能可靠地测量这些本质上不可预测的事件的后果。在这里，我们报告了太阳耀斑的观测结果，据火星全球勘测者号 2001 年 4 月的记录，太阳耀斑导致火星电离层增强高达 200%。对这些效应的姿态依赖性进行建模需要软 X 射线通量的相对增强远远超过紫外线。
All planetary atmospheres respond to the enhanced x-rays and ultraviolet (UV) light emitted from the Sun during a flare. Yet only on Earth are observations so continuous that the consequences of these essentially unpredictable events can be measured reliably. Here, we report observations of solar flares, causing up to 200% enhancements to the ionosphere of Mars, as recorded by the Mars Global Surveyor in April 2001. Modeling the attitude dependence of these effects requires that relative enhancements in the soft x-ray fluxes far exceed those in the UV.