14 papers
Columba: isolated dwarf galaxy populations in diverse cosmological environments simulated with a cold interstellar medium
Jemima M. Briggs, Azadeh Fattahi, Robert A. Crain +7
We introduce a suite of LambdaCDM cosmological, hydrodynamical simulations that track the evolution of a large population of dwarf galaxies. The suite comprises zoom-in simulations…
Dwarf stellar haloes: a powerful probe of small-scale galaxy formation and the nature of dark matter
Alis J. Deason, Sownak Bose, Azadeh Fattahi +3
We use N-body cosmological simulations and empirical galaxy models to study the merger history of dwarf-mass galaxies (with M_halo~10^10 M_Sun). Our input galaxy models describe th…
Large Scale Structure and Environmental Effects on Dwarf Galaxy Growth
Mac M. McMullan, Sownak Bose, Azadeh Fattahi +3
Dwarf galaxies serve as key models for understanding galaxy assembly in the early universe, with their final properties influenced by environmental factors. Using the dark matter-o…
Implications of a contracted dark matter halo for the Milky Way's inferred virial mass
Diego Dado, Shaun T. Brown, Azadeh Fattahi +2
We investigate how reliably the global properties of Milky Way-mass dark matter haloes can be recovered from dynamical data over a limited radial range, particularly $\lesssim 30~\…
Stirring Things Up: Bar-induced substructures in the stellar halo of a cosmological Milky Way analogue
Thomas Tomlinson, Francesca Fragkoudi, Andreia Carrillo +8
The stellar halo of the Milky Way contains the remnants of past accretion events, which could be detectable as substructures in the classical integrals of motion space, such as ene…
Local Group analogues in a cosmological context -- I. Relating velocity structure to the cosmic web
Kai Wang, Peder Norberg, Azadeh Fattahi +1
Our Local Group, dominated in mass by the Milky Way (MW) and M31, provides a unique laboratory for testing CDM cosmology on small scales owing to its proximity. However, its co…