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A Comprehensive Study of Gamma-Ray Burst Optical Emission: II. Afterglow Onset and Late Re-Brightening Components
En-Wei Liang, Liang Li, He Gao +12
We continue our systematic statistical study of various components in gamma-ray burst (GRB) optical lightcurves. We decompose the early onset bump and the late re-brightening bump…
Compton Scattering of Self-Absorbed Synchrotron Emission
He Gao, Wei-Hua Lei, Xue-Feng Wu +1
Synchrotron self-Compton (SSC) scattering is an important emission mechanism in many astronomical sources, such as gamma-ray bursts (GRBs) and active galactic nuclei (AGNs). We giv…
A Comprehensive Study of Gamma-Ray Burst Optical Emission: I. Flares and Early Shallow Decay Component
Liang Li, En-Wei Liang, Qing-Wen Tang +10
Well-sampled optical lightcurves of 146 gamma-ray bursts (GRBs) are compiled from the literature. By empirical fitting we identify eight possible emission components and summarize…
Frame-dragging, disk warping, jet precessing, and dipped X-ray lightcurve of Sw J1644+57
Wei-Hua Lei, Bing Zhang, He Gao
The X-ray transient source Sw J1644+57 recently discovered by Swift is believed to be triggered by tidal disruption of a star by a rapidly spinning supermassive black hole (SMBH).…