15 citations · 22 across the 2 of their papers we have counts for
6 papers · 1 filter
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…
Polarization evolution accompanying the very early sharp decline of GRB X-ray afterglows
Yi-Zhong Fan, Dong Xu, Da-Ming Wei
In the synchrotron radiation model, the polarization property depends on both the configuration of the magnetic field and the geometry of the visible emitting region. Some peculiar…
Is Gravitational Lensing by Intercluster Filaments Always Negligible?
Martin Feix, Dong Xu, HuanYuan Shan +4
Intercluster filaments negligibly contribute to the weak lensing signal in general relativity (GR), . In the context of relativistic modified Newtonian d…
No supernovae associated with two long-duration gamma ray bursts
Johan P. U. Fynbo, Darach Watson, Christina C. Thoene +28
It is now accepted that long duration gamma-ray bursts (GRBs) are produced during the collapse of a massive star. The standard "collapsar" model predicts that a broad-lined and lum…
The X-ray afterglow flat segment in short GRB 051221A: Energy injection from a millisecond magnetar?
Yizhong Fan, Dong Xu
The flat segment lasting seconds in the X-ray afterglow of GRB051221A represents the first clear case of strong energy injection in the external shock of a short GRB af…
The Interpretation and Implication of the Afterglow of GRB 060218
Yi-Zhong Fan, Tsvi Piran, Dong Xu
The nearby GRB 060216/SN 2006aj was an extremely long, weak and very soft GRB. It was peculiar in many aspects. We show here that the X-ray, ultraviolet/optical and radio afterglow…