59 citations · 315 across the 22 of their papers we have counts for
22 papers
Bar-induced migration of Centauri away from Gaia Sausage-Enceladus
Adam M. Dillamore, Hanyuan Zhang, Vasily Belokurov
The globular cluster Cen has been suggested to have originated in the Gaia Sausage-Enceladus (GSE) merger event, possibly as its nuclear star cluster. However, the present-day…
The erasure of Galactic bar resonances by dark matter subhaloes
Elliot Y. Davies, Adam M. Dillamore, Vasily Belokurov +1
In the context of increasing appreciation for the coupling between the Galactic bar and the halo, we introduce a new framework using stars trapped in resonance with the bar to prob…
GSE vs. LMC: reshaping of radially biased stellar haloes by satellites
Adam M. Dillamore, Jason L. Sanders, Richard A. N. Brooks
Perturbations from the Large Magellanic Cloud (LMC) of the Milky Way's stellar and dark matter haloes are well-established. However, studies have generally not considered the high…
Quantifying the Milky Way, LMC and their interaction using all-sky kinematics of outer halo stars
Richard A. N. Brooks, Jason L. Sanders, Adam M. Dillamore +4
The recent pericentric passage of the Large Magellanic Cloud (LMC) has dislodged the Milky Way's (MW) centre of mass, inducing dynamical disequilibrium, the reflex motion, in the k…
The Milky Way - Large Magellanic Cloud Interaction with Simulation Based Inference
Richard A. N. Brooks, Jason L. Sanders, Vedant Chandra +4
The infall of the Large Magellanic Cloud (LMC) into the Milky Way (MW) has displaced the MW's centre of mass, manifesting as an observed reflex motion in the velocities of outer ha…
Geometry of the Milky Way's dark matter from dynamical models of the tilted stellar halo
Adam M. Dillamore, Jason L. Sanders
The shape and orientation of the Milky Way's dark matter halo remain poorly constrained. Observations of the accreted stellar halo show that it is triaxial and tilted with respect…
A Simulation Based Inference Approach to the Dynamics of the MW-LMC System -- Validation
Richard A. N. Brooks, Jason L. Sanders, Adam M. Dillamore +2
The infall of the LMC into the Milky Way (MW) has generated dynamical disequilibrium throughout the MW. The interaction has displaced the MW's centre of mass, manifesting as an app…
Bar-driven dispersal of Galactic substructure
Adam M. Dillamore, Jason L. Sanders
Galactic archaeologists often assume that integrals of motion (IoMs) such as and are conserved, so substructure remains frozen in IoM space over many Gyr. However, this i…
Observational Constraints of Radial Migration in the Galactic Disc Driven by the Slowing Bar
HanYuan Zhang, Vasily Belokurov, N. Wyn Evans +7
Radial migration is an important dynamical effect that has reshaped the Galactic disc, but its origin has yet to be elucidated. In this work, we present evidence that resonant drag…
Dynamical streams in the local stellar halo
Adam M. Dillamore, Jason L. Sanders, Vasily Belokurov +1
Co-moving groups of stars (streams) are well known in the velocity space of the disc near the Sun. Many are thought to arise from resonances with the Galactic bar or spiral arms. I…
Trojan globular clusters: radial migration via trapping in bar resonances
Adam M. Dillamore, Stephanie Monty, Vasily Belokurov +1
We search for globular clusters (GCs) trapped in resonances with the bar of the Milky Way. By integrating their orbits in a potential with a decelerating bar, we select 10 whose or…
Radial halo substructure in harmony with the Galactic bar
Adam M. Dillamore, Vasily Belokurov, N. Wyn Evans
Overdensities in the radial phase space of the Milky Way's halo have previously been associated with the phase-mixed debris of a highly radial merger event, such as Gaia…
Hints of a disrupted binary dwarf galaxy in the Sagittarius stream
Elliot Y. Davies, Stephanie Monty, Vasily Belokurov +1
In this work, we look for evidence of a non-unity mass ratio binary dwarf galaxy merger in the Sagittarius stream. Simulations of such a merger show that, upon merging with a host,…
Taking the Milky Way for a spin: disc formation in the ARTEMIS simulations
Adam M. Dillamore, Vasily Belokurov, Andrey Kravtsov +1
We investigate the formation (spin-up) of galactic discs in the ARTEMIS simulations of Milky Way-mass galaxies. In almost all galaxies discs spin up at higher [Fe/H] than the Milky…
Stellar halo striations from assumptions of axisymmetry
Elliot Y. Davies, Adam M. Dillamore, Vasily Belokurov +1
Motivated by the LMC's impact on the integral of motion space of the stellar halo, we run an -body merger simulation to produce a population of halo-like stars. We subsequently…
Accelerated phase-mixing in the stellar halo due to a rotating bar
Elliot Y. Davies, Adam M. Dillamore, Eugene Vasiliev +1
In a galaxy merger, the stars tidally stripped from the satellite and accreted onto the host galaxy undergo phase mixing and form finely-grained structures in the phase space. Howe…
Stellar halo substructure generated by bar resonances
Adam M. Dillamore, Vasily Belokurov, N. Wyn Evans +1
Using data from the Gaia satellite's Radial Velocity Spectrometer Data Release 3 (RVS, DR3), we find a new and robust feature in the phase space distribution of halo stars. It is a…
A correlation between accreted stellar kinematics and dark matter halo spin in the ARTEMIS simulations
Adam M. Dillamore, Vasily Belokurov, N. Wyn Evans +1
We report a correlation between the presence of a Gaia-Sausage-Enceladus (GSE) analogue and dark matter halo spin in the ARTEMIS simulations of Milky Way-like galaxies. The haloes…
Ironing the folds: The phase space chevrons of a GSE-like merger as a dark matter subhalo detector
Elliot Y. Davies, Eugene Vasiliev, Vasily Belokurov +2
Recent work uncovered features in the phase space of the Milky Way's stellar halo which may be attributed to the last major merger. When stellar material from a satellite is accret…
Energy wrinkles and phase-space folds of the last major merger
Vasily Belokurov, Eugene Vasiliev, Alis J. Deason +5
Relying on the dramatic increase in the number of stars with full 6D phase-space information provided by the Gaia Data Release 3, we discover unambiguous signatures of phase-mixing…
The impact of a massive Sagittarius dSph on GD-1-like streams
Adam M. Dillamore, Vasily Belokurov, N. Wyn Evans +1
We investigate the effects of a massive () Sagittarius dwarf spheroidal galaxy (Sgr) on stellar streams using test particle simulations in a realistic…
Merger-induced galaxy transformations in the ARTEMIS simulations
Adam M. Dillamore, Vasily Belokurov, Andreea S. Font +1
Using the ARTEMIS set of 45 high-resolution cosmological simulations, we investigate a range of merger-induced dynamical transformations of Milky Way-like galaxies. We first identi…