81 citations · 241 across the 16 of their papers we have counts for
16 papers
Baryon-Accelerated Core Collapse in SIDM Halos and its Imprint on Galactic Disks
Zeineb Mezghanni, Elliot Y. Davies, Adriana Dropulic +3
The gravitational coupling between dark matter (DM) halos and the baryonic structures they host is one of the most powerful windows into the particle nature of DM. Self-interacting…
Galactic Amnesia: The Information Washout of the Milky Way Merger History
Lina Necib, Dylan Folsom, Elliot Y. Davies +2
The merger history of a galaxy leaves imprints on its present-day stellar chemodynamics, yet dynamical processes progressively erase this record. We ask: how far back in time, and…
Formation and Redshift Evolution of Dark Matter Spikes
Gonzalo Herrera, Abdelaziz Hussein, Lina Necib +2
Dark matter density spikes forming around adiabatically growing black holes can dramatically enhance indirect and direct detection signals. Canonical predictions, however, assume a…
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…
STRRINGS: STReams in Residual Images of Nearby GalaxieS
E. Sola, D. Chemaly, V. Belokurov +11
Tidal features from galaxy mergers, particularly stellar streams, offer valuable insights into galaxy assembly and dark matter halo properties. This paper aims to identify a large…
The realm of Aurora. Density distribution of metal-poor giants in the heart of the Galaxy
Evgeny P. Kurbatov, Vasily Belokurov, Sergey Koposov +11
The innermost portions of the Milky Way's stellar halo have avoided scrutiny until recently. The lack of wide-area survey data, made it difficult to reconstruct an uninterrupted vi…
Blind source separation of the stellar halo
Elliot Y. Davies, Vasily Belokurov, Andrey Kravtsov +4
The stellar halo of the Milky Way comprises an abundance of chemical signatures from accretion events and \textit{in-situ} evolution, that form an interweaving tapestry in kinemati…
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,…
Disrupted dwarf binary merger as the possible origin of NGC 2419 and Sagittarius stream substructure
Elliot Y. Davies, Vasily Belokurov, Stephanie Monty +1
Using -body simulations, we demonstrate that satellite dwarf galaxy pairs which undergo significant mixing ( Gyr) can have their respective most bound particles separate…
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…
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…
Robustness of slow contraction to cosmic initial conditions
Anna Ijjas, William G. Cook, Frans Pretorius +2
We present numerical relativity simulations of cosmological scenarios in which the universe is smoothed and flattened by undergoing a phase of slow contraction and test their sensi…
Fuzzy Dark Matter Soliton Cores around Supermassive Black Holes
Elliot Yarnell Davies, Philip Mocz
We explore the effect of a supermassive black hole (SMBH) on the density profile of a fuzzy dark matter (FDM) soliton core at the centre of a dark matter halo. We numerically solve…