Variations of System IV period of the sulfur ions in the Io torus for the volcanic event in 2015 observed by the HISAKI/EXCEED
Arakawa Ryo1, Hiroaki Misawa2, Fuminori Tsuchiya1, Masato Kagitani3, Kazuo Yoshioka4, Ichiro Yoshikawa5, Tomoki Kimura6, Go Murakami7 and Atsushi Yamazaki7, (1)Tohoku University, Sendai, Japan, (2)Tohoku Univ, Sendai, Japan, (3)PPARC, Tohoku University, Sendai, Japan, (4)ISAS/JAXA, Kanagawa, Japan, (5)The University of Tokyo, Tokyo, Japan, (6)Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Japan, (7)ISAS/JAXA, Sagamihara, Kanagawa, Japan
