XRISM constraints on unidentified X-ray emission lines, including the 3.5 keV line, in the stacked spectrum of ten galaxy clusters

Published in The Astrophysical Journal Letters, 2025

Recommended citation: XRISM Collaboration (2025). "XRISM constraints on unidentified X-ray emission lines, including the 3.5 keV line, in the stacked spectrum of ten galaxy clusters." ApJL. https://arxiv.org/abs/2510.24560