Discovery of the linear energy dependence of the spectral lag of X-ray bursts from SGR J1935+2154
Discovery of the linear energy dependence of the spectral lag of X-ray bursts from SGR J1935+2154
ABSTRACT Spectral lag of the low-energy photons with respect to the high-energy ones is a common astrophysical phenomenon (such as gamma-ray bursts and the Crab Pulsar) and may serve as a key probe to the underlying radiation mechanism. However, spectral lag in keV range of the magnetar bursts has not …