期刊
GEOPHYSICAL RESEARCH LETTERS
卷 42, 期 21, 页码 8917-8924出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2015GL064968
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资金
- NASA
- CNES
We characterize low-frequency plasma waves in the Martian magnetosphere and in the upstream region by using transport ratios. To compute the transport ratios, we use Mars Atmosphere and Volatile EvolutioN mission's (MAVEN) solar wind ion analyzer and suprathermal and thermal ion composition instrument measurements of the ion moments and the magnetometer measurements of the magnetic field. We find that the Alfven waves are the most dominant wave mode in the upstream region and the magnetosheath. Fast waves are found frequently near the bow shock and the magnetic pileup boundary. Mirror and slow waves, on the other hand, occur much less frequently. We also find that the Alfven and fast wave occurrences vary dominantly near the bow shock in response to the solar wind dynamic pressure.
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