Short-duration GRB 250221A Afterglow Driven by Two-component Jets from the Merger of a Compact Star. - Tian, Xiao; Lü, Hou-Jun; Liu, Xiao-Xuan; Dong, Xiao-Fei; Ren, Jia; Zhang, Wen-Long; Liang, En-Wei (Astrophysical Journal, 2026)