81 citations · 241 across the 16 of their papers we have counts for
14 papers · 1 filter
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…
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…
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…