activity
20032024
most citedLine-driven Disk Winds in Active Galactic Nuclei: The Critical Importance of Ionization and Radiative Transfer

120 citations · 811 across the 20 of their papers we have counts for

collaborators

20 papers

astro-ph.HE2024★ 14 cited

SIROCCO: A Publicly Available Monte Carlo Ionization and Radiative Transfer Code for Astrophysical Outflows

James H. Matthews, Knox S. Long, Christian Knigge +8

Outflows are critical components of many astrophysical systems, including accreting compact binaries and active galactic nuclei (AGN). These outflows can significantly affect a sys…

astro-ph.HE2023

State-of-the-art simulations of line-driven accretion disc winds: realistic radiation-hydrodynamics leads to weaker outflows

Nick Higginbottom, Nicolas Scepi, Christian Knigge +3

Disc winds are a common feature in accreting astrophysical systems on all scales. In active galactic nuclei (AGN) and accreting white dwarfs (AWDs), specifically, radiation pressur…

astro-ph.HE2023

A transient ultraviolet outflow in the short-period X-ray binary UW CrB

S. Fijma, N. Castro Segura, N. Degenaar +4

Accreting low mass X-ray binaries (LMXBs) are capable of launching powerful outflows such as accretion disc winds. In disc winds, vast amounts of material can be carried away, pote…

astro-ph.HE2022★ 34 cited

Optical line spectra of tidal disruption events from reprocessing in optically thick outflows

Edward J. Parkinson, Christian Knigge, James H. Matthews +4

A significant number of tidal disruption events (TDEs) radiate primarily at optical and ultraviolet (UV) wavelengths, with only weak soft X-ray components. One model for this optic…

astro-ph.HE2021★ 19 cited

Thermally driven winds in ULXs

Matthew Middleton, Nick Higginbottom, Christian Knigge +2

The presence of radiatively driven outflows is well established in ultraluminous X-ray sources (ULXs). These outflows are optically thick and can reprocess a significant fraction o…

astro-ph.HE2020★ 20 cited

Accretion Disc Winds in Tidal Disruption Events: Ultraviolet Spectral Lines as Orientation Indicators

Edward J. Parkinson, Christian Knigge, Knox S. Long +4

Some tidal disruption events (TDEs) exhibit blueshifted broad absorption lines (BALs) in their rest-frame ultraviolet (UV) spectra, while others display broad emission lines (BELs)…