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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 |
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| Cite this article: |
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ZHANG Tie-Long, Lichtenegger Herbert, SHI Jian-Kui et al 2006 Chin. Phys. Lett. 23 2338-2340 |
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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.
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| Keywords:
96.30.Gc
94.30.Vf
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Published: 01 August 2006
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