655 citations · 7.9k across the 89 of their papers we have counts for
5 papers · 1 filter
A statistical method for measuring the Galactic potential and testing gravity with cold tidal streams
Jorge Peñarrubia, Sergey E. Koposov, Matthew G. Walker
We introduce the Minimum Entropy Method, a simple statistical technique for constraining the Milky Way gravitational potential and simultaneously testing different gravity theories…
The coupling between the core/cusp and missing satellite problems
Jorge Peñarrubia, Andrew Pontzen, Matthew G. Walker +1
We calculate the energy that baryons must inject in cold dark matter (CDM) haloes in order to remove centrally-divergent DM cusps on scales relevant to observations of dwarf sphero…
The Star Formation & Chemical Evolution History of the Fornax Dwarf Spheroidal Galaxy
T. J. L. de Boer, E. Tolstoy, V. Hill +6
We present deep photometry in the B,V and I filters from CTIO/MOSAIC for about 270.000 stars in the Fornax dwarf Spheroidal galaxy, out to a radius of r_ell\sim0.8 degrees. By comb…
Dark Matter in the Milky Way's Dwarf Spheroidal Satellites
Matthew G. Walker
The Milky Way's dwarf spheroidal satellites include the nearest, smallest and least luminous galaxies known. They also exhibit the largest discrepancies between dynamical and lumin…
The cold veil of the Milky Way stellar halo
A. J. Deason, V. Belokurov, N. W. Evans +7
We build a sample of distant (D > 80 kpc) stellar halo stars with measured radial velocities. Faint () candidate blue horizontal branch (BHB) stars were selected using…