100 citations · 187 across the 4 of their papers we have counts for
8 papers
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…