All Outputs (10)

What to expect from dynamical modelling of galactic haloes (2017)
Journal Article

Many dynamical models of the Milky Way halo require assumptions that the distribution function of a tracer population should be independent of time (i.e. a steady-state distribution function) and that the underlying potential is spherical. We study t... Read More about What to expect from dynamical modelling of galactic haloes.

A unified model for the spatial and mass distribution of subhaloes (2016)
Journal Article

N-body simulations suggest that the substructures that survive inside dark matter haloes follow universal distributions in mass and radial number density. We demonstrate that a simple analytical model can explain these subhalo distributions as result... Read More about A unified model for the spatial and mass distribution of subhaloes.

The orbital PDF: the dynamical state of Milky Way sized haloes and the intrinsic uncertainty in the determination of their masses (2015)
Journal Article

Using realistic cosmological simulations of Milky Way sized haloes, we study their dynamical state and the accuracy of inferring their mass profiles with steady-state models of dynamical tracers. We use a new method that describes the phase-space dis... Read More about The orbital PDF: the dynamical state of Milky Way sized haloes and the intrinsic uncertainty in the determination of their masses.

The orbital PDF: general inference of the gravitational potential from steady-state tracers (2015)
Journal Article

We develop two general methods to infer the gravitational potential of a system using steady-state tracers, i.e. tracers with a time-independent phase-space distribution. Combined with the phase-space continuity equation, the time independence implie... Read More about The orbital PDF: general inference of the gravitational potential from steady-state tracers.

Erratum: Estimating the dark matter halo mass of our Milky Way using dynamical tracers (2015)
Journal Article

Our paper ‘Estimating the dark matter halo mass of our Milky Way using dynamical tracers’ published in MNRAS, 2015, 453, 377 contained typographic errors in equations (12) and (6) as detailed below. Our code used the correct expressions in both cases... Read More about Erratum: Estimating the dark matter halo mass of our Milky Way using dynamical tracers.

Planes of satellite galaxies: when exceptions are the rule (2015)
Journal Article

The detection of planar structures within the satellite systems of both the Milky Way (MW) and Andromeda (M31) has been reported as being in stark contradiction to the predictions of the standard cosmological model (Λ cold dark matter – ΛCDM). Given... Read More about Planes of satellite galaxies: when exceptions are the rule.

Exploring the liminality: properties of haloes and subhaloes in borderline f(R) gravity (2015)
Journal Article

We investigate the properties of dark matter haloes and subhaloes in an f(R) gravity model with |fR0| = 10−6, using a very-high-resolution N-body simulation. The model is a borderline between being cosmologically interesting and yet still consistent... Read More about Exploring the liminality: properties of haloes and subhaloes in borderline f(R) gravity.

Estimating the dark matter halo mass of our Milky Way using dynamical tracers (2015)
Journal Article

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 mock stellar haloes constructed from the Aquarius N-body simul... Read More about Estimating the dark matter halo mass of our Milky Way using dynamical tracers.

Co-evolution of black hole growth and star formation from a cross-correlation analysis between quasars and the cosmic infrared background (2015)
Journal Article

We present the first cross-correlation measurement between Sloan Digital Sky Survey type 1 quasars and the cosmic infrared background (CIB) measured by Herschel. The quasars cover the redshift range 0.15 < z < 3.5 where most of the CIB originates. We... Read More about Co-evolution of black hole growth and star formation from a cross-correlation analysis between quasars and the cosmic infrared background.

Galaxy And Mass Assembly (GAMA): the halo mass of galaxy groups from maximum-likelihood weak lensing (2014)
Journal Article

We present a maximum-likelihood weak-lensing analysis of the mass distribution in optically selected spectroscopic Galaxy Groups (G3Cv5) in the Galaxy And Mass Assembly (GAMA) survey, using background Sloan Digital Sky Survey (SDSS) photometric galax... Read More about Galaxy And Mass Assembly (GAMA): the halo mass of galaxy groups from maximum-likelihood weak lensing.