262 citations · 2.2k across the 77 of their papers we have counts for
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Clues from the prompt emission of GRB 080319B
Y. C. Zou, T. Piran, R. Sari
The extremely bright optical flash that accompanied GRB 080319B suggested, at first glance, that the prompt -rays in this burst were produced by Synchrotron self Compton (SSC).…
Expected high energy emission from GRB 080319B and origins of the GeV emission of GRBs 080514B, 080916C and 081024B
Yuan-Chuan Zou, Yi-Zhong Fan, Tsvi Piran
We calculate the high energy (sub-GeV to TeV) prompt and afterglow emission of GRB 080319B that was distinguished by a naked-eye optical flash and by an unusual strong early X-ray…
Observational Limits on Inverse Compton Processes in GRBs
Tsvi Piran, Re'em Sari, Yuan-Chuan Zou
Inverse Compton (IC) scattering is one of two viable mechanisms that can produce the prompt gamma-ray emission in Gamma-Ray Bursts. IC requires low energy seed photons and a popula…
Hyperaccretion after the Blandford-Znajek Process: a New Model for GRBs with X-Ray Flares Observed in Early Afterglows
Wei-Hua Lei, Ding-Xiong Wang, Yuan-Chuan Zou +1
We propose a three-stage model with Blandford-Znajek (BZ) and hyperaccretion process to interpret the recent observations of early afterglows of Gamma-Ray Bursts (GRBs). In the fir…
Mildly relativistic X-ray transient 080109 and SN2008D: Towards a continuum from energetic GRB/XRF to ordinary Ibc SN
Dong Xu, Yuan-Chuan Zou, Yi-Zhong Fan
We analyze the hitherto available space-based X-ray data as well as ground-based optical data of the X-ray transient 080109/SN2008D. From the data we suggest that (i) The initial t…
High Efficiency of Gamma-Ray Bursts Revisited
Y. C. Zou, Z. G. Dai
Using the conservation of energy and momentum during collisions of any two shells, we consider the efficiency of gamma-ray bursts by assuming that the ejecta from the central engin…