568 citations · 8.7k across the 176 of their papers we have counts for
14 papers · 1 filter
The star formation histories of dwarf galaxies in Local Group cosmological simulations
Ruth Digby, Julio F. Navarro, Azadeh Fattahi +6
We use the APOSTLE and Auriga cosmological simulations to study the star formation histories (SFHs) of field and satellite dwarf galaxies. Despite sizeable galaxy-to-galaxy scatter…
Subhalo destruction in the Apostle and Auriga simulations
Jack Richings, Carlos Frenk, Adrian Jenkins +7
N-body simulations make unambiguous predictions for the abundance of substructures within dark matter halos. However, the inclusion of baryons in the simulations changes the pictur…
On the correlation between the local dark matter and stellar velocities
Nassim Bozorgnia, Azadeh Fattahi, David G. Cerdeno +5
The dark matter velocity distribution in the Solar neighbourhood is an important astrophysical input which enters in the predicted event rate of dark matter direct detection experi…
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 galactic metal-rich stellar halo components with highly eccentric orbits
Azadeh Fattahi, Vasily Belokurov, Alis J. Deason +6
Using the astrometry from the ESA's Gaia mission, previous works have shown that the Milky Way stellar halo is dominated by metal-rich stars on highly eccentric orbits. To shed lig…
No cores in dark matter-dominated dwarf galaxies with bursty star formation histories
Sownak Bose, Carlos S. Frenk, Adrian Jenkins +10
Measurements of the rotation curves of dwarf galaxies are often interpreted as requiring a constant density core at the centre, at odds with the "cuspy" inner profiles predicted by…
The mass of the Milky Way from satellite dynamics
Thomas Callingham, Marius Cautun, Alis J. Deason +6
We present and apply a method to infer the mass of the Milky Way (MW) by comparing the dynamics of MW satellites to those of model satellites in the EAGLE cosmological hydrodynamic…
Faraday rotation maps of disk galaxies
Ruediger Pakmor, Thomas Guillet, Christoph Pfrommer +5
Faraday rotation is one of the most widely used observables to infer the strength and configuration of the magnetic field in the ionised gas of the Milky Way and nearby spiral gala…
Transient spiral structure and the disc velocity substructure in Gaia DR2
Jason A. S. Hunt, Jack Hong, Jo Bovy +2
The second data release from ESA's Gaia mission has revealed many ridge-like structures in the velocity distribution of the Milky Way. We show that these can arise naturally from w…
Radial Distribution of Stellar Motions in Gaia DR2
Daisuke Kawata, Junichi Baba, Ioana Ciucă +4
By taking advantage of the superb measurements of position and velocity for an unprecedented large number of stars provided in Gaia DR2, we have generated the first maps of the rot…
Aurigaia: mock Gaia DR2 stellar catalogues from the Auriga cosmological simulations
Robert J. J. Grand, John Helly, Azadeh Fattahi +12
We present and analyse mock stellar catalogues that match the selection criteria and observables (including uncertainties) of the Gaia satellite data release 2 (DR2). The source ar…
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…
Gaia DR1 evidence of disrupting Perseus Arm
Junichi Baba, Daisuke Kawata, Noriyuki Matsunaga +2
We have discovered a clear sign of the disruption phase of the Perseus arm in the Milky Way using Cepheid variables, taking advantage of the accurately measured distances of Cephei…
On the relevance of chaos for halo stars in the solar neighbourhood II
Nicolas P. Maffione, Facundo A. Gómez, Pablo M. Cincotta +7
In a previous paper based on dark matter only simulations we show that, in the approximation of an analytic and static potential describing the strongly triaxial and cuspy shape of…