Preprint
Sep 2026
SN 2025fhm: A central-engine powered Ic-BL supernova associated with X-ray transient EP250304a
We present X-ray, optical, and radio follow-up observations of EP250304a, an extragalactic fast X-ray transient (EFXT) discovered by the Einstein Probe. Its X-ray light curve exhibits two broad pulses with comparable peak fluxes within the first $\sim$1~ks, a feature rarely seen among low-luminosity gamma-ray bursts or...
Cui-Ying Song, Nan Jiang, Xiao-Feng Wang et al.
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