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The velocity anisotropy of the Milky Way satellite system
Alexander H. Riley, Azadeh Fattahi, Andrew B. Pace +9
We analyse the orbital kinematics of the Milky Way (MW) satellite system utilizing the latest systemic proper motions for 38 satellites based on data from Gaia Data Release 2. Comb…
The origin of the mass scales for maximal star formation efficiency and quenching: the critical role of Supernovae
Bruno Henriques, Simon White, Simon Lilly +3
We use the Henriques et al. (2015) version of the Munich galaxy formation model (L-GALAXIES) to investigate why the halo and stellar mass scales above which galaxies are quenched a…
The Auriga Stellar Haloes: Connecting stellar population properties with accretion and merging history
Antonela Monachesi, Facundo A. Gómez, Robert J. J. Grand +9
We examine the stellar haloes of the Auriga simulations, a suite of thirty cosmological magneto-hydrodynamical high-resolution simulations of Milky Way-mass galaxies performed with…
Dynamical constraints on the dark matter distribution of the Sculptor dwarf spheroidal from stellar proper motions
Louis E. Strigari, Carlos S. Frenk, Simon D. M. White
We compare the transverse velocity dispersions recently measured within the Sculptor dwarf spheroidal galaxy to the predictions of previously published dynamical models. These prov…