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The survival and disruption of CDM micro-haloes: implications for direct and indirect detection experiments
Tobias Goerdt, Oleg Y. Gnedin, Ben Moore +2
If the dark matter particle is a neutralino then the first structures to form are cuspy cold dark matter (CDM) haloes collapsing after redshifts z ~ 100 in the mass range 10^{-6} -…
Dynamical friction in constant density cores: a failure of the Chandrasekhar formula
J. I. Read, Tobias Goerdt, Ben Moore +3
Using analytic calculations and N-body simulations we show that in constant density (harmonic) cores, sinking satellites undergo an initial phase of very rapid (super-Chandrasekhar…
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…