Hot Oxygen Corona at Mars and Its Effect on Solar Wind Deceleration  

作　　者：ZHANG Tie-Long Lichtenegger Herbert 史建魁 王霄 Lammer Helmut 

机构地区：[1]Space Research Institute, Austrian Academy of Sciences, Graz, Austria [2]State Laboratory for Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080

出　　处：《Chinese Physics Letters》2006年第8期2338-2340,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 40374057, and the International Collaboration Research Team Program of the Chinese Academy of Sciences.

摘　　要：Phobos 2 plasma measurements have revealed solar wind deceleration of about 100 km/s upstream of the Martian bow shock. It is suggested that the deceleration is due to the mass loading by the ions originating from the hot oxygen corona of Mars. In this study, we use a gas-dynamic model to estimate the solar wind deceleration caused by the mass loading effect and the result shows that the deceleration is only about 10-15 km/s when we invoke the well established hot oxygen corona density profiles.Phobos 2 plasma measurements have revealed solar wind deceleration of about 100 km/s upstream of the Martian bow shock. It is suggested that the deceleration is due to the mass loading by the ions originating from the hot oxygen corona of Mars. In this study, we use a gas-dynamic model to estimate the solar wind deceleration caused by the mass loading effect and the result shows that the deceleration is only about 10-15 km/s when we invoke the well established hot oxygen corona density profiles.

分 类 号：P14[天文地球—天体物理] O53[天文地球—天文学]