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Fundamental differences between SPH and grid methods
Oscar Agertz, Ben Moore, Joachim Stadel +17
We have carried out a hydrodynamical code comparison study of interacting multiphase fluids. The two commonly used techniques of grid and smoothed particle hydrodynamics (SPH) show…
Two strong-lensing clusters confront universal dark-matter profiles
P. Saha, J. I. Read, L. L. R. Williams
In the galaxy clusters SSDS J1004+411 and ACO 1689, a large number of multiply-imaged background objects have recently been observed. We use these data to map the projected mass di…
Does the Fornax dwarf spheroidal have a central cusp or core?
Tobias Goerdt, Ben Moore, J. I. Read +2
The dark matter dominated Fornax dwarf spheroidal has five globular clusters orbiting at ~1 kpc from its centre. In a cuspy CDM halo the globulars would sink to the centre from the…
The internal kinematics of dwarf spheroidal galaxies
M. I. Wilkinson, J. T. Kleyna, N. W. Evans +5
The status of kinematic observations in Local Group dwarf spheroidal galaxies (dSphs) is reviewed. Various approaches to the dynamical modelling of these data are discussed and som…