298 citations · 3.3k across the 53 of their papers we have counts for
10 papers · 1 filter
The hidden giant: discovery of an enormous Galactic dwarf satellite in Gaia DR2
G. Torrealba, V. Belokurov, S. E. Koposov +8
We report the discovery of a Milky Way satellite in the constellation of Antlia. The Antlia 2 dwarf galaxy is located behind the Galactic disc at a latitude of a…
The Sausage Globular Clusters
G. C. Myeong, N. W. Evans, V. Belokurov +2
The Gaia Sausage is an elongated structure in velocity space discovered by Belokurov et al. (2018) using the kinematics of metal-rich halo stars. It was created by a massive dwarf…
Isochrone ages for ~3 million stars with the second Gaia data release
Jason L. Sanders, Payel Das
We present a catalogue of distances, masses and ages for million stars in the second Gaia data release with spectroscopic parameters available from the large spectroscopic…
A two-parameter family of double-power-law biorthonormal potential-density expansions
E. J. Lilley, J. L. Sanders, N. W. Evans
Biorthonormal basis function expansions are widely used in galactic dynamics, both to study problems in galactic stability and to provide numerical algorithms to evolve collisionle…
MADE: A spectroscopic Mass, Age, and Distance Estimator for red giant stars with Bayesian machine learning
Payel Das, Jason Sanders
We present a new approach (MADE) that generates mass, age, and distance estimates of red giant stars from a combination of astrometric, photometric, and spectroscopic data. The cor…
The Shards of Centauri
G. C. Myeong, N. W. Evans, V. Belokurov +2
We use the SDSS-Gaia catalogue to search for substructure in the stellar halo. The sample comprises 62\,133 halo stars with full phase space coordinates and extends out to heliocen…
The Milky Way Halo in Action Space
G. C. Myeong, N. W. Evans, V. Belokurov +2
We analyse the structure of the local stellar halo of the Milky Way using 60000 stars with full phase space coordinates extracted from the SDSS--{\it Gaia} catalogue. We dis…
Tidal disruption of dwarf spheroidal galaxies: the strange case of Crater II
Jason L. Sanders, N. Wyn Evans, Walter Dehnen
Dwarf spheroidal galaxies of the Local Group obey a relationship between the line-of-sight velocity dispersion and half-light radius, although there are a number of dwarfs that lie…
Galaxy halo expansions: a new biorthogonal family of potential-density pairs
E. J. Lilley, J. L. Sanders, N. W. Evans +1
Efficient expansions of the gravitational field of (dark) haloes have two main uses in the modelling of galaxies: first, they provide a compact representation of numerically-constr…
The Super-NFW model: an analytic dynamical model for cold dark matter haloes and elliptical galaxies
E. Lilley, N. W. Evans, J. L. Sanders
An analytic galaxy model with at small radii and at large radii is presented. The asymptotic density fall-off is slower than the Hernquist model, bu…