141 citations · 518 across the 13 of their papers we have counts for
13 papers
Accelerated growth of seed black holes by dust in the early universe
KwangHo Park, Gen Chiaki, John H. Wise
We explore the effect of dust on the growth of seed black holes (BHs) in the early universe. Previous 1D radiation-hydrodynamic (RHD) simulations show that increased radiation pres…
Biconical-dominated Accretion Flow onto Seed Black Holes in a Hyper-accretion Regime
KwangHo Park, John H. Wise, Tamara Bogdanović +1
Hyperaccretion occurs when the gas inflow rate onto a black hole (BH) is so high that the radiative feedback cannot reverse the accretion flow. This extreme process is a promising…
The Interplay of Kinetic and Radiative Feedback in Galaxy Clusters
Yu Qiu, Tamara Bogdanovic, Yuan Li +2
Recent observations provide evidence that some cool-core clusters (CCCs) host quasars in their brightest cluster galaxies (BCGs). Motivated by these findings we use 3D radiation-hy…
Dusty Gas Accretion onto Massive Black Holes and Infrared Diagnosis of the Eddington Ratio
Hidenobu Yajima, Massimo Ricotti, KwangHo Park +1
Evidence for dust around supermassive black holes (SMBHs) in the early Universe is strongly suggested by recent observations. However, the accretion mechanism of SMBHs in dusty gas…
Radiation-driven turbulent accretion onto massive black holes
KwangHo Park, John H. Wise, Tamara Bogdanović
Accretion of gas and interaction of matter and radiation are at the heart of many questions pertaining to black hole (BH) growth and coevolution of massive BHs and their host galax…
Gaseous Dynamical Friction in Presence of Black Hole Radiative Feedback
KwangHo Park, Tamara Bogdanović
Dynamical friction is thought to be a principal mechanism responsible for orbital evolution of massive black holes (MBHs) in the aftermath of galactic mergers and an important chan…
Bulge-driven Fueling of Seed Black Holes
KwangHo Park, Massimo Ricotti, Priyamvada Natarajan +2
We examine radiation-regulated accretion onto intermediate-mass and massive black holes (BHs) embedded in a bulge component. Using spherically symmetric one-dimensional radiation-h…
Luminosity function of [OII] emission-line galaxies in the MassiveBlack-II simulation
KwangHo Park, Tiziana Di Matteo, Shirley Ho +4
We examine the luminosity function (LF) of [OII] emission-line galaxies in the high-resolution cosmological simulation MassiveBlack-II (MBII). From the spectral energy distribution…
The role of Compton heating in radiation-regulated accretion on to black holes
KwangHo Park, Massimo Ricotti, Tiziana Di Matteo +1
We investigate the role of Compton heating in radiation-regulated accretion on to black holes from a neutral dense medium using 1D radiation-hydrodynamic simulations. We focus on t…
Rayleigh-Taylor instability of ionization front around black holes
KwangHo Park, Massimo Ricotti, Tiziana Di Matteo +1
We examine the role of ionizing radiation emitted from black holes (BHs) in suppressing the growth of the Rayleigh-Taylor instability (RTI) across the ionization front (I-front) th…
Accretion onto Black Holes from Large Scales Regulated by Radiative Feedback. III. Enhanced Luminosity of Intermediate Mass Black Holes Moving at Supersonic Speeds
KwangHo Park, Massimo Ricotti
In this third paper of a series, we study the growth and luminosity of black holes (BHs) in motion with respect to their surrounding medium. We run a large set of two-dimensional (…
Accretion onto Black Holes from Large Scales Regulated by Radiative Feedback. II. Growth Rate and Duty Cycle
KwangHo Park, Massimo Ricotti
This paper, the second of a series on radiation-regulated accretion onto black holes (BHs) from galactic scales, focuses on the effects of radiation pressure and angular momentum o…
Accretion onto Intermediate Mass Black Holes Regulated by Radiative Feedback I. Parametric Study for Spherically Symmetric Accretion
KwangHo Park, Massimo Ricotti
We study the effect of radiative feedback on accretion onto intermediate mass black holes (IMBHs) using the hydrodynamical code ZEUS-MP with a radiative transfer algorithm. In this…