Evidence for a ∼43 GeV γ-ray Line Signal in a Stacking Analysis of the Virgo, Fornax, and Ophiuchus Galaxy ClustersRemoveYi-Zhong Fan, Zhao-Qiang Shen, Yun-Feng Liang, Xiang Li, Kai-Kai Duan, Zi-Qing Xia, Xiao-Yuan Huang, Lei Feng, and Qiang YuanPhys. Rev. Lett. 137, 071003 (2026)
