Competition of magnetic reconnections in self-generated and external magnetic fields
K. Sakai, T. Y. Huang, N. Khasanah, N. Bolouki, H. H. Chu, T., Moritaka, Y. Sakawa, T. Sano, K. Tomita, S. Matsukiyo, T. Morita, H. Takabe,, R. Yamazaki, R. Yasuhara, H. Habara, Y. Kuramitsu
TL;DR
This paper studies how magnetic reconnections compete in plasmas with both self-generated and external magnetic fields, revealing that external fields can suppress reconnection in laser-produced plasmas.
Contribution
It provides experimental insights into the interaction between self-generated and external magnetic fields affecting magnetic reconnection dynamics.
Findings
External magnetic fields suppress reconnection in self-generated fields.
Plasma expansion signatures indicate reconnection outflows.
External fields influence plasma structure evolution.
Abstract
We investigate the competition of magnetic reconnections in self-generated and external magnetic fields in laser-produced plasmas. The temporal evolution of plasma structures measured with self-emission imaging shows the vertical expansions and horizontal separation of plasma, which can be signatures of reconnection outflows in self-generated and external magnetic fields, respectively. Because the outflows in self-generated magnetic fields are not clear in the presence of the external magnetic field, the external magnetic field can suppress the magnetic reconnection in self-generated magnetic fields.
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