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Black hole hyperaccretion inflow-outflow model. II. Long-duration gamma-ray bursts and supernova bumps
Cui-Ying Song, Tong Liu
Long-duration gamma-ray bursts (LGRBs) associated with supernovae (SNe) are possibly born out of the death of a massive star. After the star collapses, a stellar-mass black hole (B…
Multi-color blackbody emission in GRB 081221
Shu-Jin Hou, Bin-Bin Zhang, Yan-Zhi Meng +9
The radiation mechanism of the prompt emission of gamma-ray bursts (GRBs) remains an open question. Although their spectra are usually well fitted with the empirical Band function,…
A lower occurrence rate of bright X-ray flares in SN-GRBs than GRBs: evidence of energy partitions?
Hui-Jun Mu, Wei-Min Gu, Jirong Mao +6
The occurrence rates of bright X-ray flares in z<1 gamma-ray bursts (GRBs) with or without observed supernovae (SNe) association were compared. Our Sample I: the z<1 long GRBs (LGR…
Central Engine-Powered Bright X-ray Flares in Short Gamma-Ray Bursts: A Hint of Black Hole-Neutron Star Merger?
Hui-Jun Mu, Wei-Min Gu, Jirong Mao +3
Short gamma-ray bursts may originate from the merger of double neutron stars (NS) or that of a black hole (BH) and an NS. We propose that the bright X-ray flare related to the cent…
First Electromagnetic Pulse Associated with a Gravitational-Wave Event: Profile, Duration, and Delay
Da-Bin Lin, Tong Liu, Jie Lin +3
We study the first electromagnetic pulse after the gravitational wave chirp signal, focusing on the profile and duration. It is found that the light curve, especially the steep dec…
Compact binary merger and kilonova: outflows from remnant disc
Tuan Yi, Wei-Min Gu, Tong Liu +3
Outflows launched from a remnant disc of compact binary merger may have essential contribution to the kilonova emission. Numerical calculations are conducted in this work to study…