Interaction between the null-separator structure of the solar wind-magnetosphere magnetic field system and the plasma dynamics in the constant solar wind condition

Shigeru Fujita, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, Tachikawa, Japan, Masakazu Watanabe, Kyushu University, Fukuoka, Japan, Dong Sheng Cai, University of Tsukuba, Computer Science, Tsukuba, Japan and Takashi Tanaka, Kyushu University, International Center for Space Weather Science and Education, Fukuoka, Japan