766 citations · 2.4k across the 17 of their papers we have counts for
8 papers · 1 filter
Intrinsic galaxy shapes and alignments II: Modelling the intrinsic alignment contamination of weak lensing surveys
B. Joachimi, E. Semboloni, S. Hilbert +4
Intrinsic galaxy alignments constitute the major astrophysical systematic of forthcoming weak gravitational lensing surveys but also yield unique insights into galaxy formation and…
The Mass Profile and Accretion History of Cold Dark Matter Halos
Aaron D. Ludlow, Julio F. Navarro, Michael Boylan-Kolchin +6
We use the Millennium Simulation series to study the relation between the accretion history (MAH) and mass profile of cold dark matter halos. We find that the mean density within t…
The Dynamical State and Mass-Concentration Relation of Galaxy Clusters
Aaron D. Ludlow, Julio F. Navarro, Ming Li +3
We use the Millennium Simulation series to study how the dynamical state of dark matter halos affects the relation between mass and concentration. We find that a large fraction of…
Intrinsic galaxy shapes and alignments I: Measuring and modelling COSMOS intrinsic galaxy ellipticities
B. Joachimi, E. Semboloni, P. E. Bett +5
The statistical properties of the ellipticities of galaxy images depend on how galaxies form and evolve, and therefore constrain models of galaxy morphology, which are key to the r…
Halo Shapes From Weak Lensing: The Impact of Galaxy--Halo Misalignment
Philip E. Bett
We analyse the impact of galaxy--halo misalignment on the ability of weak lensing studies to constrain the shape of dark matter haloes, using a combination of the Millennium dark m…
Spin flips I: Evolution of the angular momentum orientation of Milky Way-mass dark matter haloes
Philip E. Bett, Carlos S. Frenk
During the growth of a cold dark matter halo, the direction of its spin can undergo rapid changes. These could disrupt or even destroy a stellar disc forming in the halo, possibly…