Volume 40 Issue 3
May  2020
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ZHOU Zilu, SONG Xiaojian. Observation of a Dual Reconnection Exhaust Inside the Boundary Layer of Magnetic Cloud at 1 AU[J]. Journal of Space Science, 2020, 40(3): 323-330. doi: 10.11728/cjss2020.03.323
Citation: ZHOU Zilu, SONG Xiaojian. Observation of a Dual Reconnection Exhaust Inside the Boundary Layer of Magnetic Cloud at 1 AU[J]. Journal of Space Science, 2020, 40(3): 323-330. doi: 10.11728/cjss2020.03.323

Observation of a Dual Reconnection Exhaust Inside the Boundary Layer of Magnetic Cloud at 1 AU

doi: 10.11728/cjss2020.03.323
  • Received Date: 2019-05-20
  • Rev Recd Date: 2019-11-25
  • Publish Date: 2020-05-15
  • Magnetic reconnection is prevalent in the low speed and low proton beta solar wind and is usually associated with Interplanetary Coronal Mass Ejections (ICME). In this paper, a dual reconnection exhaust in the front boundary of a Magnetic Cloud (MC) was observed by WIND spacecraft on 18 October 1995. The Alfvénic accelerated or decelerated plasma jets were examined using Walén relation near the boundary of the exhausts, which are consistent with the characteristics of the interplanetary reconnection exhausts reported in recent literatures. As a consequence, multiple reconnection exhausts could be abundant ahead of the MCs and complex 3D boundary layers would form instead of single reconnections exhausts. Such complex structures may bring some difficulties in searching for reconnection events in the magnetic cloud boundary layers.

     

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