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The Colours of Satellite Galaxies in Groups and Clusters
Andreea S. Font, Richard G. Bower, Ian G. McCarthy +6
Current models of galaxy formation predict satellite galaxies in groups and clusters that are redder than observed. We investigate the effect on the colours of satellite galaxies p…
The statistical properties of LCDM halo formation
Shaun Cole, John Helly, Carlos S. Frenk +1
We present a comparison of the statistical properties of dark matter halo merger trees extracted from the Millennium Simulation with Extended Press-Schechter (EPS) formalism and th…
Generating Dark Matter Halo Merger Trees
Hannah Parkinson, Shaun Cole, John Helly
We present a new Monte-Carlo algorithm to generate merger trees describing the formation history of dark matter halos. The algorithm is a modification of the algorithm of Cole et a…
The spin and shape of dark matter haloes in the Millennium simulation of a LambdaCDM universe
Philip Bett, Vincent Eke, Carlos S. Frenk +3
We investigate the spins and shapes of over a million dark matter haloes identified at z=0 in the Millennium simulation. Our sample spans halo masses ranging from dwarf galaxies to…
The Effect of Gravitational Recoil on Black Holes Forming in a Hierarchical Universe
N. I. Libeskind, S. Cole, C. S. Frenk +1
Galactic bulges are known to harbour central black holes whose mass is tightly correlated with the stellar mass and velocity dispersion of the bulge. In a hierarchical universe, me…
The broken hierarchy of galaxy formation
R. G. Bower, A. J. Benson, R. Malbon +5
Recent observations of the distant Universe suggest that much of the stellar mass of bright galaxies was already in place at . This presents a challenge for models of galaxy f…