Japan Geoscience Union Meeting 2019

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[J] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS23] Planetary Volcanology

Mon. May 27, 2019 9:00 AM - 10:30 AM 106 (1F)

convener:Rina Noguchi(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Tomokatsu Morota(Graduate School of Environmental Studies, Nagoya University), Kyoko S. Kataoka(Research Institute for Natural Hazards and Disaster Recovery, Niigata University), Shizuka Otsuki(Research Institute of Earthquake and Volcano Geology, Geological Survey of Japan, Advanced Industrial Science and Technology), Chairperson:Rina Noguchi(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Nobuo Geshi(GSJ/AIST)

9:45 AM - 10:00 AM

[MIS23-04] Volcanic activity on Io, formation of the atmosphere, and escape of atmosphere to the magnetosphere

*Fuminori Tsuchiya1, Ryoichi Koga1, Mizuki Yoneda2, Masato Kagitani1, Kazuo Yoshioka4, Reina Hikida4, Go Murakami3, Tomoki Kimura1, Atsushi Yamazaki3, Hajime Kita3, Ichiro Yoshikawa4 (1.Tohoku University, 2.Tadano, 3.ISAS/JAXA, 4.The University of Tokyo)

Keywords:volcano, Io, Hisaki

Jupiter's satellite Io is known as the most active volcanically active body in the solar system. The atmosphere of the satellite consists mainly of volcanic gas composed of sulfur dioxide. The molecular escaped becomes primary source of plasma in the magnetosphere of Jupiter. Here, observations of the volcanic gas escaped from satellite with the extreme ultraviolet telescope satellite, Hisaki, and a groundbased visible telescope, and observations of hot spot of Io's volcano with infrared telescopes are presented. We will discuss the formation of the satellite atmosphere, escape process of the atmospheric gas to the magnetosphere, and their relation to volcano types.