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Inner cusps of the first dark matter haloes: Formation and survival in a cosmological context
M. Sten Delos, Simon D. M. White
We use very high resolution cosmological zoom simulations to follow the early evolution of twelve first-generation haloes formed from gaussian initial conditions with scale-free po…
Dark matter annihilation and the Galactic Centre Excess
Robert J. J. Grand, Simon D. M. White
We compare the surface brightness profile and morphology of the Galactic Centre Excess (GCE) identified in wide-angle -ray maps from the Fermi-Large Area Telescope to dark matte…
Simulating the complexity of the dark matter sheet II: halo and subhalo mass functions for non-cold dark matter models
Jens Stücker, Raul E. Angulo, Oliver Hahn +1
We present "sheet+release" simulations that reliably follow the evolution of dark matter structure at and below the dark matter free-streaming scale, where instabilities in traditi…
Measuring the Tidal Response of Structure Formation: Anisotropic Separate Universe Simulations using TreePM
Jens Stücker, Andreas. S. Schmidt, Simon D. M. White +2
We present anisotropic "separate universe" simulations which modify the N-body code Gadget-4 in order to represent a large-scale tidal field through an anisotropic expansion factor…
Universal structure of dark matter haloes over a mass range of 20 orders of magnitude
Jie Wang, Sownak Bose, Carlos S. Frenk +4
Cosmological models in which dark matter consists of cold elementary particles predict that the dark halo population should extend to masses many orders of magnitude below those at…
The Tessellation-Level-Tree: characterising the nested hierarchy of density peaks and their spatial distribution in cosmological N-body simulations
Philipp Busch, Simon D. M. White
We use the Millennium and Millennium-II simulations to illustrate the Tessellation-Level-Tree (TLT), a hierarchical tree structure linking density peaks in a field constructed by v…