# The Mass Profile of the Milky Way to the Virial Radius from the Illustris Simulation

@article{Taylor2016TheMP,
title={The Mass Profile of the Milky Way to the Virial Radius from the Illustris Simulation},
author={Corbin Taylor and Michael Boylan-Kolchin and Paul Torrey and Mark Vogelsberger and Lars Hernquist},
journal={Monthly Notices of the Royal Astronomical Society},
year={2016},
volume={461},
pages={3483-3493}
}
We use particle data from the Illustris simulation, combined with individual kinematic constraints on the mass of the Milky Way (MW) at specific distances from the Galactic Centre, to infer the radial distribution of the MW's dark matter halo mass. Our method allows us to convert any constraint on the mass of the MW within a fixed distance to a full circular velocity profile to the MW's virial radius. As primary examples, we take two recent (and discrepant) measurements of the total mass within… Expand

#### Figures and Tables from this paper

Constraining the Milky Way mass with hypervelocity stars
• Physics
• 2017
Abstract Although a variety of techniques have been employed for determining the Milky Way dark matter halo mass distribution, the range of allowed masses spans both light and heavy values. KnowingExpand
An Upper Limit on the Milky Way Mass from the Orbit of the Sagittarius Dwarf Satellite
• Physics
• 2017
As one of the most massive Milky Way satellites, the Sagittarius dwarf galaxy has played an important role in shaping the Galactic disk and stellar halo morphologies. The disruption of SagittariusExpand
The mass of our Milky Way
• Physics
• 2019
We perform an extensive review of the numerous studies and methods used to determine the total mass of the Milky Way. We group the various studies into seven broad classes according to their modelingExpand
A High Stellar Velocity Dispersion and ~100 Globular Clusters for the Ultra Diffuse Galaxy Dragonfly 44
Recently a population of large, very low surface brightness, spheroidal galaxies was identified in the Coma cluster. The apparent survival of these Ultra Diffuse Galaxies (UDGs) in a rich clusterExpand
Nearly coeval intermediate-age Milky Way star clusters at very different dynamics evolutionary stages
• Physics
• Monthly Notices of the Royal Astronomical Society
• 2019
We report astrophysical properties of 12 Milky Way open clusters located beyond a 2 kpc circle around the Sun by using deep optical photometry. We estimated their age and metallicities on the basisExpand
Probing gaseous halos of galaxies with radio jets
• Physics
• Astronomy & Astrophysics
• 2019
Context. Gaseous halos play a key role in understanding inflow, feedback, and the overall baryon budget in galaxies. Literature models predict transitions of the state of the gaseous halo betweenExpand
DGSAT: Dwarf Galaxy Survey with Amateur Telescopes II. A catalogue of isolated nearby edge-on disk galaxies and the discovery of new low surface brightness systems
• Physics
• 2017
The connection between the bulge mass or bulge luminosity in disk galaxies and the number, spatial and phase space distribution of associated dwarf galaxies is a discriminator between cosmologicalExpand
Synthetic 26Al emission from galactic-scale superbubble simulations
• Physics
• Monthly Notices of the Royal Astronomical Society
• 2019
Emission from the radioactive trace element 26Al has been observed throughout the Milky Way with the COMPTEL and INTEGRAL satellites. In particular, the Doppler shifts measured with INTEGRALExpand
Through a Smoother Lens: An expected absence of LCDM substructure detections from hydrodynamic and dark matter only simulations.
• Physics, Medicine
• Monthly notices of the Royal Astronomical Society
• 2018
Substructure predictions for lensing using galaxy lens-like hosts at z=0.2 from the Illustris simulations both in full hydrodynamics and dark matter only are explored, comparable to current lensing detections derived from HST, Keck, and ALMA. Expand
What galaxy masses perturb the local cosmic expansion
• Physics
• 2017
We use 12 cosmological $N$-body simulations of Local Group systems (the Apostle models) to inspect the relation between the virial mass of the main haloes ($M_{\rm vir,1}$ and $M_{\rm vir,2}$), theExpand

#### References

SHOWING 1-10 OF 66 REFERENCES
Baryon effects on the internal structure of ΛCDM haloes in the EAGLE simulations
We investigate the internal structure and density profiles of haloes of mass 1010–1014 M⊙ in the Evolution and Assembly of Galaxies and their Environment (EAGLE) simulations. These follow theExpand
The Masses of the Milky Way and Andromeda galaxies
We present a family of robust tracer mass estimators to compute the enclosed mass of galaxy haloes from samples of discrete positional and kinematical data of tracers, such as halo stars, globularExpand
On the Shoulders of Giants: Properties of the Stellar Halo and the Milky Way Mass Distribution
• Physics
• 2014
Halo stars orbit within the potential of the Milky Way, and hence their kinematics can be used to understand the underlying mass distribution. However, the inferred mass distribution dependsExpand
Estimating the dark matter halo mass of our Milky Way using dynamical tracers
The mass of the dark matter halo of the Milky Way can be estimated by fitting analytical models to the phase-space distribution of dynamical tracers. We test this approach using realistic mockExpand
THE SPACE MOTION OF LEO I: THE MASS OF THE MILKY WAY'S DARK MATTER HALO
We combine our Hubble Space Telescope measurement of the proper motion of the Leo I dwarf spheroidal galaxy (presented in a companion paper) with the highest resolution numerical simulations ofExpand
The Milky Way’s Circular Velocity Curve to 60 kpc and an Estimate of the Dark Matter Halo Mass from the Kinematics of ~2400 SDSS Blue Horizontal-Branch Stars
We derive new constraints on the mass of the Milky Way's dark matter halo, based on 2401 rigorously selected blue horizontal-branch halo stars from SDSS DR6. This sample enables construction of theExpand
A huge reservoir of ionized gas around the Milky Way: Accounting for the Missing Mass?
• Physics
• 2012
Most of the baryons from galaxies have been "missing" and several studies have attempted to map the circumgalactic medium (CGM) of galaxies in their quest. We report on X-ray observations made withExpand
The Orbital Ellipticity of Satellite Galaxies and the Mass of the Milky Way
• Physics
• 2014
We use simulations of Milky Way-sized dark matter haloes from the Aquarius Project to investigate the orbits of substructure haloes likely, according to a semi-analytic galaxy formation model, toExpand
The present and future mass of the Milky Way halo
• Physics
• 1999
A simple model for the Milky Way halo is presented. It has a flat rotation curve in the inner regions, but the density falls off sharply beyond an outer edge. This truncated, flat rotation curve (TF)Expand
CONSTRAINTS ON THE SHAPE OF THE MILKY WAY DARK MATTER HALO FROM THE SAGITTARIUS STREAM
• Physics
• 2013
We propose a new model for the dark matter halo of the Milky Way that fits the properties of the stellar stream associated with the Sagittarius dwarf galaxy. Our dark halo is oblate with q(z) = 0.9Expand