233 citations · 586 across the 5 of their papers we have counts for
5 papers
Dark matter heats up in dwarf galaxies
J. I. Read, M. G. Walker, P. Steger
Gravitational potential fluctuations driven by bursty star formation can kinematically 'heat up' dark matter at the centres of dwarf galaxies. A key prediction of such models is th…
The case for a cold dark matter cusp in Draco
J. I. Read, M. G. Walker, P. Steger
We use a new mass modelling method, GravSphere, to measure the central dark matter density profile of the Draco dwarf spheroidal galaxy. Draco's star formation shut down long ago,…
The Local Dark Matter Density from SDSS-SEGUE G-dwarfs
Sofia Sivertsson, Hamish Silverwood, Justin I. Read +2
We derive the local dark matter density by applying the integrated Jeans equation method from Silverwood et al. (2016) to SDSS-SEGUE G-dwarf data processed and presented by Büdenbe…
How to break the density-anisotropy degeneracy in spherical stellar systems
J. I. Read, P. Steger
We present a new non-parametric Jeans code, GravSphere, that recovers the density and velocity anisotropy of spherical stellar systems, assuming only that they are in…
A non-parametric method for measuring the local dark matter density
Hamish Silverwood, Sofia Sivertsson, Pascal Steger +2
We present a new method for determining the local dark matter density using kinematic data for a population of tracer stars. The Jeans equation in the -direction is integrated t…