100 citations · 337 across the 11 of their papers we have counts for
11 papers
An orbital perspective on the starvation, stripping, and quenching of satellite galaxies in the EAGLE simulations
Ruby J. Wright, Claudia del P. Lagos, Chris Power +3
Using the EAGLE suite of simulations, we demonstrate that both cold gas stripping {\it and} starvation of gas inflow play an important role in quenching satellite galaxies across a…
Extracting Galaxy Merger Timescales II: A new fitting formula
Rhys J. J. Poulton, Chris Power, Aaron S. G. Robotham +2
Predicting the merger timescale () of merging dark matter halos, based on their orbital parameters and the structural properties of their hosts, is a fundamental pro…
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…
Extracting galaxy merger timescales I: Tracking haloes with WhereWolf and spinning orbits with OrbWeaver
Rhys J. J. Poulton, Chris Power, Aaron S. G. Robotham +1
Hierarchical models of structure formation predict that dark matter halo assembly histories are characterised by episodic mergers and interactions with other haloes. An accurate de…
Characterising the Structure of Halo Merger Trees Using a Single Parameter: The Tree Entropy
Danail Obreschkow, Pascal J. Elahi, Claudia del P. Lagos +2
Linking the properties of galaxies to the assembly history of their dark matter haloes is a central aim of galaxy evolution theory. This paper introduces a dimensionless parameter…
Hunting for Galaxies and Halos in simulations with VELOCIraptor
Pascal J. Elahi, Rodrigo Cañas, Rhys J. J. Poulton +5
We present VELOCIraptor, a massively parallel galaxy/(sub)halo finder that is also capable of robustly identifying tidally disrupted objects and separate stellar halos from galaxie…
Climbing Halo Merger Trees with TreeFrog
Pascal J. Elahi, Rhys J. J. Poulton, Rodrigo J. Tobar +4
We present TreeFrog, a massively parallel halo merger tree builder that is capable comparing different halo catalogues and producing halo merger trees. The code is written in c++11…
Observing Merger Trees in a New Light
Rhys J. J. Poulton, Aaron S. G. Robotham, Chris Power +1
Merger trees harvested from cosmological -body simulations encode the assembly histories of dark matter halos over cosmic time, and are a fundamental component of semi-analytica…
SURFS: Riding the waves with Synthetic UniveRses For Surveys
Pascal J. Elahi, Charlotte Welker, Chris Power +4
We present the Synthetic UniveRses For Surveys ({\sc surfs}) simulations, a set of N-body/Hydro simulations of the concordance Cold Dark Matter (\LCDM) cosmology. These simulat…
Using Velocity Dispersion to Estimate Halo Mass: Is the Local Group in Tension with CDM?
Pascal J. Elahi, Chris Power, Claudia del P. Lagos +2
Satellite galaxies are commonly used as tracers to measure the line-of-sight velocity dispersion () of the dark matter halo associated with their central galaxy, and t…
The complex evolutionary paths of local infrared bright galaxies: a high angular resolution mid-infrared view
A. Alonso-Herrero, R. Poulton, P. F. Roche +15
We investigate the evolutionary connection between local IR-bright galaxies () and quasars. We use high angular resolution ( 0.3-0.4 arcsec…