128 citations · 881 across the 28 of their papers we have counts for
28 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…
Einstein Probe discovery of EP J171159.4-333253: an eclipsing neutron star low-mass X-ray binary with clocked bursts
Y. L. Wang, F. Coti Zelati, E. Parent +27
EP J171159.4-333253 is a new neutron-star low-mass X-ray binary discovered in outburst by the Einstein Probe (EP) on 2025 June 23, exhibiting clocked type-I X-ray bursts, eclipses…
The effectively optically thin accretion flow and its implication in supermassive black holes
Mingjun Liu, B. F. Liu, Yilong Wang +2
Based on a unified description of various accretion flows, we find a long-ignored solution - the effectively optically thin accretion flow, occurring at accretion rates around Eddi…
A generalized solution for advection-dominated accretion flow, standard disc, and slim disc
Mingjun Liu, B. F. Liu, Yilong Wang +2
Aiming at a general description of four basic solutions describing the accretion processes, i.e., the Shakura-Sunyaev thin disc (SSD), the Shapiro-Lightman-Eardley solution (SLE),…
An Intermediate-mass Black Hole Lurking in A Galactic Halo Caught Alive during Outburst
C. -C. Jin, D. -Y. Li, N. Jiang +137
Stellar-mass and supermassive black holes abound in the Universe, whereas intermediate-mass black holes (IMBHs) of ~10^2-10^5 solar masses in between are largely missing observatio…
A large population of neutron star low-mass X-ray binaries with long outburst recurrence time ?
E. Meyer-Hofmeister, Huaqing Cheng, B. F. Liu
Low-mass X-ray binaries (LMXBs) with neutron stars show quite different features which depend on the rate of mass transfer from the donor star. With a high transfer rate the Z sour…
Magnetic-Reconnection-Heated Corona Model: Implication of Hybrid Electrons for Hard X-ray Emission of Luminous Active Galactic Nuclei
Jie-Ying Liu, Jirong Mao, B. F. Liu
It is widely accepted that X-ray emission in luminous active galactic nuclei (AGNs) originates from hot corona. To prevent the corona from over-cooling by strong X-ray emission, st…
Accretion around black holes: The geometry and spectra
B. F. Liu, Erlin Qiao
Observations of black hole X-ray binaries and active galactic nuclei indicate that the accretion flows around black holes are composed of hot and cold gas, which have been theoreti…
The radiative efficiency of neutron stars at low-level accretion
Erlin Qiao, B. F. Liu
When neutrons star low-mass X-ray binaries (NS-LMXBs) are in the low-level accretion regime (i.e., ), the accretion flow in the inner re…
The condensation of the corona for the correlation between the hard X-ray photon index and the reflection scaling factor in active galactic nuclei
Erlin Qiao, B. F. Liu
Observationally, it is found that there is a strong correlation between the hard X-ray photon index and the Compton reflection scaling factor in active galactic nuclei. I…
Revisiting the structure and spectrum of the magnetic-reconnection-heated corona in luminous AGNs
J. Y. Liu, ErLin Qiao, B. F. Liu
It is believed that the hard X-ray emission in the luminous active galactic nuclei (AGNs) is from the hot corona above the cool accretion disk. However, the formation of the corona…
A disc corona-jet model for the radio/X-ray correlation in black hole X-ray binaries
Erlin Qiao, B. F. Liu
The observed tight radio/X-ray correlation in the low spectral state of some black hole X-ray binaries implies the strong coupling of the accretion and jet. The correlation of $L_{…
The disk evaporation model for the spectral features of low-luminosity active galactic nuclei
Erlin Qiao, B. F. Liu, Francesca Panessa +1
Observations show that the accretion flows in low-luminosity active galactic nuclei (LLAGNs) probably have a two-component structure with an inner ADAF and an outer truncated accre…
Constraints on the Viscosity and Magnetic Field in Hot Accretion Flows around Black Holes
B. F. Liu, Ronald E. Taam
The magnitude of the viscosity and magnetic field parameters in hot accretion flows is investigated in low luminosity active galactic nuclei (LLAGNs). Theoretical studies show that…
A Model for the Correlation of Hard X-ray Index with Eddington Ratio in Black Hole X-ray Binaries
ErLin Qiao, B. F. Liu
Observations show that there is a positive correlation between Eddington ratio and hard X-ray index for , and there is an anti-correlation between and $Γ…
Disk corona interaction: mechanism for the disk truncation and spectrum change in low luminosity AGN
Ronald E. Taam, B. F. Liu, W. Yuan +1
The truncation of an optically thick, geometrically thin accretion disk is investigated in the context of low luminosity AGN (LLAGN). We generalize the disk evaporation model used…
Coronae above accretion disks around black holes: The effect of Compton cooling
E. Meyer-Hofmeister, B. F. Liu, F. Meyer
The geometry of the accretion flow around stellar mass and supermassive black holes depends on the accretion rate. Broad iron emission lines originating from the irradiation of coo…
The Structure and Spectral Features of a Thin Disk and Evaporation-Fed Corona in High-Luminosity AGNs
J. Y. Liu, B. F. Liu, E. L. Qiao +1
We investigate the accretion process in high-luminosity AGNs (HLAGNs) in the scenario of the disk evaporation model. Based on this model, the thin disk can extend down to the inner…
The Emission from Inner Disk and Corona in the Low and Intermediate Spectral States of Black Hole X-ray Binaries
Erlin Qiao, B. F. Liu
Recent observations reveal that a cool disk may survive in the innermost stable circular orbit (ISCO) for some black hole X-ray binaries in the canonical low/hard state. The spectr…
The effect of coronal radiation on a residual inner disk in the low/hard spectral state of black hole X-ray binary systems
B. F. Liu, C. Done, Ronald E. Taam
Thermal conduction between a cool accretion disk and a hot inner corona can result in either evaporation of the disk or condensation of the hot corona. At low mass accretion rates,…
X-ray observational signature of a black hole accretion disc in an active galactic nucleus RXJ1633+4718
Weimin Yuan, Bifang Liu, Hongyan Zhou +1
We report the discovery of a luminous ultra-soft X-ray excess in a radio-loud narrow-line Seyfert1 galaxy, RXJ1633+4718, from archival ROSAT observations. The thermal temperature o…
The hard to soft spectral transition in LMXBs - affected by recondensation of gas into an inner disk
E. Meyer-Hofmeister, B. F. Liu, F. Meyer
Soft and hard spectral states of X-ray transient sources reflect two modes of accretion, accretion via a geometrically thin, optically thick disk or an advection-dominated accretio…
Application of the Disk Evaporation Model to AGNs
B. F. Liu, Ronald E. Taam
The disk corona evaporation model extensively developed for the interpretation of observational features of black hole X-ray binaries (BHXRBs) is applied to AGNs. Since the evapora…
A simple model for magnetic reconnection heated corona
B. F. Liu, S. Mineshige, K. Shibata
We construct a simple model for a magnetic reconnection heated corona above a thin accretion disk in AGNs and Galactic black hole candidates(GBHCs). The basic assumptions are that…