期刊
GEOPHYSICAL RESEARCH LETTERS
卷 42, 期 2, 页码 215-224出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2014GL062538
关键词
electron solitary waves; magnetic reconnection; magnetopause
资金
- Swedish National Space Board [128/11:2]
- STFC [ST/H004130/1, ST/G008493/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/G008493/1, ST/H004130/1] Funding Source: researchfish
- UK Space Agency [ST/N003586/1, ST/J004758/1] Funding Source: researchfish
Electrostatic solitary waves (ESWs) are observed at the magnetopause with distinct time scales. These ESWs are associated with asymmetric reconnection of the cold dense magnetosheath plasma with the hot tenuous magnetospheric plasma. The distinct time scales are shown to be due to ESWs moving at distinct speeds and having distinct length scales. The length scales are of order 5-50 Debye lengths, and the speeds range from approximate to 50 km s(-1) to approximate to 1000 km s(-1). The ESWs are observed near the reconnection separatrices. The observation of ESWs with distinct speeds suggests that multiple instabilities are occurring. The implications for reconnection at the magnetopause are discussed.
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