【Authors】Kosuke Namekata, Hiroyuki Maehara, Yuta Notsu, Satoshi Honda, Kai Ikuta, Daisaku Nogami, Kazunari Shibata

【Title】Do Young Suns Produce Frequent, Massive CMEs? Results from Five-year Dedicated Optical Observations of EK Draconis and V889 Hercules

【Journal】The Astrophysical Journal

【Publication Date】Published at 19:00JST on October 27, 2025 (simultaneously with Nature Astronomy)

【DOI】http://doi.org/10.3847/1538-4357/adfe70

【Kyoto University Press Release】https://www.kyoto-u.ac.jp/en/research-news/2025-10-28