440 citations · 521 across the 6 of their papers we have counts for
3 papers · 1 filter
Efficiency Crisis of Swift Gamma-Ray Bursts with Shallow X-ray Afterglows: Prior Activity or Time-Dependent Microphysics?
Kunihito Ioka, Kenji Toma, Ryo Yamazaki +1
Most X-ray afterglows of gamma-ray bursts (GRBs) observed by the Swift satellite have a shallow decay phase t^{-1/2} in the first few hours. This is not predicted by the standard a…
Shallow Decay of Early X-ray Afterglows from Inhomogeneous Gamma-Ray Burst Jets
Kenji Toma, Kunihito Ioka, Ryo Yamazaki +1
Almost all the X-ray afterglows of gamma-ray bursts (GRBs) observed by the Swift satellite have a shallow decay phase in the first thousands of seconds. We show that in an inhomoge…
A Unified Model for Gamma-Ray Bursts
Ryo Yamazaki, Kunihito Ioka, Takashi Nakamura +1
A possible unified model of short and long gamma-ray bursts (GRBs), X-ray rich GRBs, and X-ray flashes is proposed. It is assumed that the jet of a GRB consists of many emitting su…