Shared properties of merger-driven long-duration gamma-ray bursts Yacheng Kang, Jin-Ping Zhu, Yu-Han Yang, Ziming Wang, Eleonora Troja, Bing Zhang, Lijing Shao and Zhuo Li A&A, 698 (2025) A250 Published online: 18 June 2025 DOI: 10.1051/0004-6361/202554448