Evolution of Plasmoid-Chain in Poynting-Dominates Plasma

Takamoto, Makoto

doi:10.1142/S2010194514601707

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Evolution of Plasmoid-Chain in Poynting-Dominates Plasma

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Takamoto, Makoto
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Citation

Takamoto, M. (2014). Evolution of Plasmoid-Chain in Poynting-Dominates Plasma. International Journal of Modern Physics: Conference Series, 28: 1460170. doi:10.1142/S2010194514601707.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-026D-4

Abstract

We present our recent results of the evolution of the plasmoid-chain in a Poynting dom- inated plasma. We model the relativistic current sheet with cold background plasma using the relativistic resistive magnetohydrodynamic approximation, and solve its tem- poral evolution numerically. Numerical results show that the initially induced plasmoid triggers a secondary tearing instability. We find the plasmoid-chain greatly enhances the reconnection rate, which becomes independent of the Lundquist number, when this exceeds a critical value. Since magnetic reconnection is expected to play an important role in various high energy astrophysical phenomena, our results can be used for explain- ing the physical mechanism of them