130 citations · 254 across the 6 of their papers we have counts for
6 papers
The effects of dynamical substructure on Milky Way mass estimates from the high velocity tail of the local stellar halo
Robert J. J. Grand, Alis J. Deason, Simon D. M. White +4
We investigate the impact of dynamical streams and substructure on estimates of the local escape speed and total mass of Milky Way-mass galaxies from modelling the high velocity ta…
To the Galactic Virial Radius with Hyper Suprime-Cam
Alis J. Deason, Vasily Belokurov, Sergey E. Koposov
We exploit the exquisite, deep Hyper Suprime-Cam (HSC) imaging data to probe the Galactic halo out to 200 kpc. Using the ~100 square degree, multi-band photometry of the first HSC…
Cresting the wave: Proper motions of the Eastern Banded Structure
Alis J. Deason, Vasily Belokurov, Sergey E. Koposov
We study the kinematic properties of the Eastern Banded Structure (EBS) and Hydra I overdensity using exquisite proper motions derived from the Sloan Digital Sky Survey (SDSS) and…
Space Telescope and Optical Reverberation Mapping Project. V. Optical Spectroscopic Campaign and Emission-Line Analysis for NGC 5548
L. Pei, M. M. Fausnaugh, A. J. Barth +153
We present the results of an optical spectroscopic monitoring program targeting NGC 5548 as part of a larger multi-wavelength reverberation mapping campaign. The campaign spanned s…
A Hubble Astrometry Initiative: Laying the Foundation for the Next-Generation Proper-Motion Survey of the Local Group
Nitya Kallivayalil, Andrew R. Wetzel, Joshua D. Simon +6
High-precision astrometry throughout the Local Group is a unique capability of the Hubble Space Telescope (HST), with potential for transformative science, including constraining t…
Accurate Masses for Navarro-Frenk-White Dark Matter Haloes
N. W. Evans, J. An, A. Deason
We consider the problem of estimating the virial mass of a dark halo from the positions and velocities of a tracer population. Although a number of general tools are available, mor…