Severe Impact of Stellar Superflares on Planetary Habitability

Yosuke Alexandre Yamashiki1, Vladimir Airapetian2, Tatsuhiko Sato3, Hiroyuki Maehara4, Yuta Notsu5, Kosuke Namekata5, Riko Shimizu6, Nami Kimura7, Ayu Shirakashi8, Daisaku Nogami9 and Kazunari Shibata9, (1)Yamashiki Laboratory Graduate School of Advanced Integrated Studies in Human Survivability Kyoto University, Gokasho Uji, Japan, (2)SEEC/NASA Goddard Space Flight Center & American University, DC, SEEC, Greenbelt, MD, United States, (3)Japan Atomic Energy Agency, Tokai, Japan, (4)NAOJ National Astronomical Observatory of Japan, Asakuchi, Japan, (5)Kyoto University, Department of Astronomy, Kyoto, Japan, (6)SOKENDAI Graduate University for Advanced Studies, Kanagawa, Japan, (7)Kyoto University, Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto, Japan, (8)Kyoto University, School of Medicine, Kyoto, Japan, (9)Kyoto University, Kyoto, Japan