7 papers
Hydrodynamical simulation of wind production from hot accretion flows in tidal disruption events
Mingjun Liu, De-Fu Bu, Xiao-Hong Yang +5
Wind is a key mechanism for supermassive black hole (SMBH) feedback to their host galaxies. In tidal disruption events (TDEs), black holes spend most of their time accreting at hig…
Radiative cooling effects on black hole hot accretion flows around the sub-Bondi radius
Mu-Qing Liu, Xiao-Hong Yang, De-Fu Bu
It is difficult to implement numerical simulations on a region extending from the vicinity of a black hole to the Bondi radius. Most previous numerical simulations have primarily c…
Numerical Simulations of the Circularized Accretion Flow in Population III Star Tidal Disruption Events. II. Radiative Properties
Yu-Heng Sheng, De-Fu Bu, Liang Chen +3
Tidal Disruption Events (TDEs) release enormous amounts of energy, offering a promising avenue for detecting Population III (Pop III) stars. However, the radiative properties of TD…
Numerical simulations of cold clumps in the hot accretion flows around black holes
Na-Duo Liu, Yu-Heng Sheng, De-Fu Bu +3
Previous numerical simulations have shown that cold clumps can form within hot accretion flows, offering insights into the detailed processes of the state transition in black hole…
Numerical Simulations of the Circularized Accretion Flow in Population III Star Tidal Disruption Events. I. The Accretion Flow and the Wind
Yu-Heng Sheng, De-Fu Bu, Xiao-Hong Yang +2
Tidal Disruption Events (TDEs) have recently been proposed as potential probes for Population III stars. However, the properties of the accretion flow and the wind from the Pop III…
Line-force driven wind from a thin disk in tidal disruption event
De-Fu Bu, Xiao-Hong Yang, Liang Chen +2
Winds from the accretion disk in tidal disruption events (TDEs) play a key role in determining the radiation of TDEs. The winds from the super-Eddington accretion phase in TDEs hav…