282 citations · 969 across the 17 of their papers we have counts for
5 papers · 1 filter
Spurious Small-Scale Structure & Discreteness-Driven Relaxation in Cosmological Simulations
Chris Power, Aaron S. G. Robotham, Danail Obreschkow +2
There is strong evidence that cosmological N-body simulations dominated by Warm Dark Matter (WDM) contain spurious or unphysical haloes, most readily apparent as regularly spaced l…
nIFTy galaxy cluster simulations I: dark matter & non-radiative models
Federico Sembolini, Gustavo Yepes, Frazer R. Pearce +24
We have simulated the formation of a galaxy cluster in a CDM universe using twelve different codes modeling only gravity and non-radiative hydrodynamics (\art, \arepo, \hydra\ a…
Novel Adaptive softening for collisionless N-body simulations: Eliminating spurious halos
Alexander Hobbs, Justin Read, Oscar Agertz +2
We describe a NOVel form of Adaptive softening (NovA) for collisionless -body simulations, implemented in the Ramses adaptive mesh refinement code. We introduce a refinement cri…
The formation of entropy cores in non-radiative galaxy cluster simulations: SPH versus AMR
C. Power, J. I. Read, A. Hobbs
Abridged: We simulate a massive galaxy cluster in a LCDM Universe using three different approaches to solving the equations of non-radiative hydrodynamics: `classic' Smoothed Parti…
Growing supermassive black holes: sub-grid modelling and intermediate-scale processes
Alexander Hobbs
The sheer range of scales in the Universe makes it impossible to model all at once. It is necessary, therefore, when conducting numerical experiments, that we employ sub-resolution…