论文标题
汞表面温度对钠丰度在其外层中的影响
Effects of Mercury surface temperature on the sodium abundance in its exosphere
论文作者
论文摘要
已经研究了汞的表面温度与Exosphere钠含量之间的联系。观察结果表明，沿着汞的轨道，存在两个总Na含量的最大值：一个在Aphelion，另一个在围围层。以前的模型基于简单的热图，无法再现晶状体峰。在这里，我们引入了一种新的热物理模型，使土壤温度作为过去已经使用的IAPS Exospheric模型的输入，并通过简单的热图输入。通过将参考模型输出与新的输出进行比较，我们表明这种改进的表面温度图对于解释沿轨道钠的时间变异性至关重要。
The link between the surface temperature of Mercury and the exosphere sodium content has been investigated. Observations show that, along the orbit of Mercury, two maxima of total Na content are present: one at aphelion and one at perihelion. Previous models, based on a simple thermal map, were not able to reproduce the aphelion peak. Here we introduce a new thermophysical model giving soil temperatures as an input for the IAPS exospheric model already used in the past with the input of a simple thermal map. By comparing the reference model output with the new one, we show that such improved surface temperature map is crucial to explain the temporal variability of Sodium along the orbit.
