311 citations · 1.1k across the 31 of their papers we have counts for
12 papers · 1 filter
HALO7D II: The Halo Velocity Ellipsoid and Velocity Anisotropy with Distant Main Sequence Stars
Emily C. Cunningham, Alis J. Deason, Robyn E. Sanderson +7
The Halo Assembly in Lambda-CDM: Observations in 7 Dimensions (HALO7D) dataset consists of Keck II/DEIMOS spectroscopy and Hubble Space Telescope-measured proper motions of Milky W…
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…
HALO7D I: The Line of Sight Velocities of Distant Main Sequence Stars in the Milky Way Halo
Emily C. Cunningham, Alis J. Deason, Constance M. Rockosi +5
The Halo Assembly in Lambda-CDM: Observations in 7 Dimensions (HALO7D) dataset consists of Keck II/DEIMOS spectroscopy and Hubble Space Telescope-measured proper motions of Milky W…
The aftermath of the Great Collision between our Galaxy and the Large Magellanic Cloud
Marius Cautun, Alis J. Deason, Carlos S. Frenk +1
The Milky Way (MW) offers a uniquely detailed view of galactic structure and is often regarded as a prototypical spiral galaxy. But recent observations indicate that the MW is atyp…
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…
The Halo's Ancient Metal-Rich Progenitor Revealed with BHB Stars
Lachlan Lancaster, Sergey E. Koposov, Vasily Belokurov +2
Using the data from the Sloan Digital Sky Survey and the Gaia satellite, we assemble a pure sample of 3000 Blue Horizontal Branch (BHB) stars with 7-D information, including…