Generation of Alfvén wave energy during magnetic reconnection in Hall MHD

Lingjie LI (李灵杰); Zhiwei MA (马志为); Licheng WANG (王理程)

doi:10.1088/2058-6272/aa7c17

Plasma Science and Technology > 2017 > 19(10): 105001. > DOI: 10.1088/2058-6272/aa7c17

Lingjie LI (李灵杰), Zhiwei MA (马志为), Licheng WANG (王理程). Generation of Alfvén wave energy during magnetic reconnection in Hall MHD[J]. Plasma Science and Technology, 2017, 19(10): 105001. DOI: 10.1088/2058-6272/aa7c17

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Generation of Alfvén wave energy during magnetic reconnection in Hall MHD

Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027, People’s Republic of China

Funds: This work is supported by the Fundamental Research Fund for Chinese Central Universities, National Natural Science Founfidation of China under Grant No. 41474123, and the ITER-CN under Grant Nos. 2013GB104004 and 2013GB111004.

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Received Date: May 07, 2017

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Abstract

Abstract

The effect of the reconnection rate on the generation of Alfvén wave energy is systematically investigated using Hall magnetohydrodynamics (MHD). It is well known that a decrease in magnetic energy is proportional to the reconnection rate. It is found that an instantaneous increase in Alfvén wave energy in unit Alfvén time is the square dependence on the reconnection rate. The converted Alfvén wave energy is strongly enhanced due to the large increase in the reconnection rate in Hall MHD. For solar-terrestrial plasmas, the maximum converted Alfvén wave energy in unit Alfvén time with the Hall effect can be over 50 times higher than that without the Hall effect during magnetic reconnection.
- magnetic reconnection,
- Alfvén wave energy,
- Hall effect

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References (40)

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