252 citations · 3.5k across the 60 of their papers we have counts for
12 papers · 1 filter
Constraining SIDM with halo shapes: revisited predictions from realistic simulations of early-type galaxies
Giulia Despali, Levi G. Walls, Simona Vegetti +3
We study the effect of self-interacting dark matter (SIDM) and baryons on the shape of early-type galaxies (ETGs) and their dark matter haloes, comparing them to the predictions of…
Particle ejection during mergers of dark matter halos
Isabella P. Carucci, Martin Sparre, Steen H. Hansen +1
Dark matter halos are built from accretion and merging. During merging some of the dark matter particles may be ejected with velocities higher than the escape velocity. We use both…
The metallicity and dust content of a redshift 5 gamma-ray burst host galaxy
M. Sparre, O. E. Hartoog, T. Krühler +26
Observations of the afterglows of long gamma-ray bursts (GRBs) allow the study of star-forming galaxies across most of cosmic history. Here we present observations of GRB 111008A f…
Spectroscopy of the short-hard GRB 130603B: The host galaxy and environment of a compact object merger
A. de Ugarte Postigo, C. C. Thoene, A. Rowlinson +40
Short duration gamma-ray bursts (SGRBs) are thought to be related to the violent merger of compact objects, such as neutron stars or black holes, which makes them promising sources…
The behaviour of shape and velocity anisotropy in dark matter haloes
Martin Sparre, Steen H. Hansen
Dark matter haloes from cosmological N-body simulations typically have triaxial shapes and anisotropic velocity distributions. Recently it has been shown that the velocity anisotro…
Asymmetric velocity anisotropies in remnants of collisionless mergers
Martin Sparre, Steen H. Hansen
Dark matter haloes in cosmological N-body simulations are affected by processes such as mergers, accretion and the gravitational interaction with baryonic matter. Typically the ana…