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Testing Blandford-Znajek mechanism in black hole hyperaccretion flows for long-duration gamma-ray bursts
Mei Du, Shuang-Xi Yi, Tong Liu +2
Long-duration gamma-ray bursts (GRBs) are generally related to the core-collapse of massive stars. In the collapsar scenario, a rotating stellar-mass black hole (BH) surrounded by…
Final compact remnants in core-collapse supernovae from 20 to 40 : the lower mass gap
Tong Liu, Yun-Feng Wei, Li Xue +1
A mass paucity of compact objects in the range of has been suggested by X-ray binary observations, namely, the "lower mass gap". Gravitational wave detections h…
Contribution of dark matter annihilation to gamma-ray burst afterglows near massive galaxy centers
Bao-Quan Huang, Tong Liu, Feng Huang +2
Gamma-ray bursts (GRBs) are believed to be powered by ultrarelativistic jets. If these jets encounter and accelerate excess electrons and positrons produced by particle dark matter…
Modeling Quasar UV/Optical Variability with the Corona-heated Accretion-disk Reprocessing (CHAR) Model
Mouyuan Sun, Yongquan Xue, Hengxiao Guo +7
The rest-frame UV/optical variability of the quasars in the Sloan Digital Sky Survey (SDSS) Stripe 82 is used to test the Corona-Heated Accretion-disk Reprocessing (CHAR) model of…
Neutrino-dominated accretion flows: second nucleosynthesis factory in core-collapse supernovae and regulation of iron markets in galaxies
Tong Liu, Yan-Qing Qi, Zhen-Yi Cai +3
Cosmic metals are widely believed to be produced by supernovae (SNe) and compact object mergers. Here, we discuss the nucleosynthesis of neutrino-dominated accretion flows (NDAFs)…
Neutrinos and gravitational waves from magnetized neutrino-dominated accretion discs with magnetic coupling
Cui-Ying Song, Tong Liu, Yun-Feng Wei
Gamma-ray bursts (GRBs) might be powered by a black hole (BH) hyperaccretion systems via the Blandford-Znajek (BZ) mechanism or neutrino annihilation from neutrino-dominated accret…