74 citations · 539 across the 20 of their papers we have counts for
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Radiation Pressure Instability-Driven Variability of Line-Driven Disk Winds in AGNs: Connection to Periodic Luminosity Variations and UFO Appearance
Yutaro Kuroda, Ken Ohsuga, Mariko Nomura +1
We investigated the temporal variability of line-driven disk winds induced by radiation pressure instability in accretion disks surrounding supermassive black holes. This is the fi…
Resolving the Multiple Component Outflows in PG 1211+143: II. The Soft X-ray View of the Ultra Fast Outflow
James Reeves, Valentina Braito, Misaki Mizumoto +16
The nearby quasar, PG 1211+143, has one of the prototype examples of an ultra fast outflow (UFO), as seen in several past XMM-Newton and Chandra observations. In December 2024, PG…
Unification Model of Active Galactic Nuclei by Photoionization Equilibrium Calculation Based on Radiative Hydrodynamic Simulations
Atsushi Tanimoto, Keiichi Wada, Yuki Kudoh +3
To investigate the origin of the dependence of the covering factor on the Eddington ratio suggested by X-ray observations, we examined the angular distribution of HI and HII based…
Resolving the Multiple Component Outflows in PG 1211+143: I. The Fe-K Absorption Structure and UFO Forest
Misaki Mizumoto, James N. Reeves, Valentina Braito +15
We present the initial high-resolution X-ray spectroscopic observations of the Fe-K absorption structure in the luminous nearby quasar PG 1211+143, utilizing the X-ray Imaging and…
Qwind3: UV line-driven accretion disc wind models for AGN feedback
Arnau Quera-Bofarull, Chris Done, Cedric G. Lacey +2
The ultraviolet (UV) bright accretion disc in active galactic nuclei (AGN) should give rise to line driving, producing a powerful wind which may play an important role in AGN feedb…
UV line driven disc wind as the origin of ultrafast outflows in AGN
Misaki Mizumoto, Mariko Nomura, Chris Done +2
UltraFast Outflows (UFO) are observed in some active galactic nuclei (AGN), with blueshifted and highly ionised Fe-K absorption features. AGN typically have a UV bright accretion f…
The thermal-radiative wind in low mass X-ray binary H 1743-322; Radiation hydrodynamic simulations
Ryota Tomaru, Chris Done, Ken Ohsuga +2
Blueshifted absorption lines are seen in high inclination black hole binary systems in their disc dominated states, showing these power an equatorial disc wind. While some contribu…
Line-driven disc wind in near-Eddington active galactic nuclei: decrease of mass accretion rate due to powerful outflow
Mariko Nomura, Ken Ohsuga, Chris Done
Based on recent X-ray observations, ultra-fast outflows from supermassive black holes are expected to have enough energy to dramatically affect their host galaxy but their launch a…
Line-driven disk wind model for ultra-fast outflows in active galactic nuclei -- Scaling with luminosity
Mariko Nomura, Ken Ohsuga
In order to reveal the origin of the ultra-fast outflows (UFOs) that are frequently observed in active galactic nuclei (AGNs), we perform two-dimensional radiation hydrodynamics si…
Radiation Hydrodynamic Simulations of Line-Driven Disk Winds for Ultra Fast Outflows
Mariko Nomura, Ken Ohsuga, Hiroyuki R. Takahashi +2
Using two-dimensional radiation hydrodynamic simulations, we investigate origin of the ultra fast outflows (UFOs) that are often observed in luminous active galactic nuclei (AGNs).…
Modeling line-driven disk wind for broad absorption lines of quasars
Mariko Nomura, Ken Ohsuga, Keiichi Wada +2
The disk wind, which is powered by the radiation force due to spectral lines (line force), is studied for broad absorption line (BAL) quasars. We investigate the structure of the d…