370 citations · 1.8k across the 36 of their papers we have counts for
11 papers · 1 filter
The Hierarchical Structure of Galactic Haloes: Classification and characterisation with Halo-OPTICS
William H. Oliver, Pascal J. Elahi, Geraint F. Lewis +1
We build upon Ordering Points To Identify Clustering Structure (OPTICS), a hierarchical clustering algorithm well-known to be a robust data-miner, in order to produce Halo-OPTICS,…
Global HI asymmetries in IllustrisTNG: a diversity of physical processes disturb the cold gas in galaxies
Adam B. Watts, Chris Power, Barbara Catinella +2
Observations of the cold neutral atomic hydrogen (HI) in and around disc galaxies have revealed that spatial and kinematic asymmetries are commonplace, and are reflected in the glo…
The distribution and properties of DLAs at z 2 in the EAGLE simulations
Lilian Garratt-Smithson, Chris Power, Claudia del P. Lagos +3
Determining the spatial distribution and intrinsic physical properties of neutral hydrogen on cosmological scales is one of the key goals of next-generation radio surveys. We use t…
Pre-processing, group accretion and the orbital trajectories of associated subhaloes
Lucie Bakels, Aaron D. Ludlow, Chris Power
We use a high-resolution cosmological dark matter-only simulation to study the orbital trajectories of haloes and subhaloes in the environs of isolated hosts. We carefully tally al…
The physical drivers of the atomic hydrogen-halo mass relation
Garima Chauhan, Claudia del P. Lagos, Adam R. H. Stevens +3
We use SHARK, a semi-analytic galaxy formation model, to investigate the physical processes involved in dictating the shape, scatter and evolution of the HI-halo mass relation at $…
An efficient hybrid method to produce high resolution large volume dark matter simulations for semi-analytic models of reionisation
Yisheng Qiu, Simon J. Mutch, Pascal J. Elahi +3
Resolving faint galaxies in large volumes is critical for accurate cosmic reionisation simulations. While less demanding than hydrodynamical simulations, semi-analytic reionisation…