Oxygen Escape from Mars, Venus and Earth

小行星9816237 由拉里·帕克斯顿博士领导的一个研究小组将调查火星、金星和地球外太空的填充过程，以及可能导致原子氧从火星大气中大量逃逸的过程。 该小组将制作外大气层原子氧分布模型，并通过与现有观测数据集进行比较来验证该模型。 其结果将是对三颗行星的外太空中每一颗行星的工作机制进行比较，并初步了解它们如何随着时间的推移而变化。 主要集中领域将是火星大气中的作用过程和对大气演变的影响。 该项目的资金由天文科学处、大气科学处和数学和物理科学局多学科活动办公室共同提供。

9816237 Paxton A research team led by Dr. Larry Paxton will investigate the processes which populate the exospheres of Mars, Venus, and Earth and which can lead to significant escape of atomic oxygen from the Mars atmosphere. The group will produce model distributions of the exospheric atomic oxygen and validate the model by comparing it to existing observational data sets. The result will be a comparison of the mechanisms at work in each of the three planets' exospheres and a first order look at how they have varied over time. The main area of concentration will be the processes at work in the Martian atmosphere and the implications for atmospheric evolution. Funding for this project is shared among the Division of Astronomical Sciences, the Division of Atmospheric Sciences, and the Office of Multidisciplinary Activities in the Mathematical and Physical Sciences Directorate.