Hot Oxygen Corona at Mars and Its Effect on Solar Wind Deceleration
ZHANG Tie-Long1, Lichtenegger Herbert1, SHI Jian-Kui2, WANG Xiao2, Lammer Helmut1
1Space Research Institute, Austrian Academy of Sciences, Graz, Austria
2State Laboratory for Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080
Hot Oxygen Corona at Mars and Its Effect on Solar Wind Deceleration
1Space Research Institute, Austrian Academy of Sciences, Graz, Austria
2State Laboratory for Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080
Abstract： Phobos 2 plasma measurements have revealed solar wind deceleration of about 100km/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--15km/s when we invoke the well established hot oxygen corona density profiles.
ZHANG Tie-Long;Lichtenegger Herbert;SHI Jian-Kui;WANG Xiao;Lammer Helmut. Hot Oxygen Corona at Mars and Its Effect on Solar Wind Deceleration[J]. 中国物理快报, 2006, 23(8): 2338-2340.
ZHANG Tie-Long, Lichtenegger Herbert, SHI Jian-Kui, WANG Xiao, Lammer Helmut. Hot Oxygen Corona at Mars and Its Effect on Solar Wind Deceleration. Chin. Phys. Lett., 2006, 23(8): 2338-2340.
2006, Vol. 23 
