Search Results - "Grand, Robert J. J"
-
1
The biggest splash
Published in Monthly notices of the Royal Astronomical Society (21-05-2020)“…ABSTRACT Using a large sample of bright nearby stars with accurate Gaia Data Release 2 astrometry and auxiliary spectroscopy we map out the properties of the…”
Get full text
Journal Article -
2
The effects of cosmic rays on the formation of Milky Way-mass galaxies in a cosmological context
Published in Monthly notices of the Royal Astronomical Society (01-09-2020)“…ABSTRACT We investigate the impact of cosmic rays (CRs) and different modes of CR transport on the properties of Milky Way-mass galaxies in cosmological…”
Get full text
Journal Article -
3
The dynamics of stars around spiral arms
Published in Monthly notices of the Royal Astronomical Society (01-04-2012)“…Spiral density wave theory attempts to describe the spiral pattern in spiral galaxies in terms of a long-lived wave structure with a constant pattern speed in…”
Get full text
Journal Article -
4
The milky way total mass profile as inferred from Gaia DR2
Published in Monthly notices of the Royal Astronomical Society (21-05-2020)“…ABSTRACT We determine the Milky Way (MW) mass profile inferred from fitting physically motivated models to the Gaia DR2 Galactic rotation curve and other data…”
Get full text
Journal Article -
5
Merger-induced metallicity dilution in cosmological galaxy formation simulations
Published in Monthly notices of the Royal Astronomical Society (21-09-2018)Get full text
Journal Article -
6
Quenching and ram pressure stripping of simulated Milky Way satellite galaxies
Published in Monthly notices of the Royal Astronomical Society (21-07-2018)“…Abstract We present predictions for the quenching of star formation in satellite galaxies of the Local Group from a suite of 30 cosmological zoom simulations…”
Get full text
Journal Article -
7
The local high-velocity tail and the Galactic escape speed
Published in Monthly notices of the Royal Astronomical Society (21-05-2019)“…Abstract We model the fastest moving ($v_{\rm tot} \gt 300 \, {\rm km}\, \, {\rm s}^{-1}$) local (D ≲ 3 kpc) halo stars using cosmological simulations and…”
Get full text
Journal Article -
8
The mass of the Milky Way from satellite dynamics
Published in Monthly notices of the Royal Astronomical Society (21-04-2019)“…Abstract 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…”
Get full text
Journal Article -
9
Dark matter halo shapes in the Auriga simulations
Published in Monthly notices of the Royal Astronomical Society (01-12-2019)“…ABSTRACT We present shape measurements of Milky Way–sized dark matter haloes at redshift z = 0 in a suite of 30 zoom simulations from the Auriga project. We…”
Get full text
Journal Article -
10
The effects of bar–spiral coupling on stellar kinematics in the Galaxy
Published in Monthly notices of the Royal Astronomical Society (01-10-2016)“…We investigate models of the Milky Way disc taking into account simultaneously the bar and a two-armed quasi-static spiral pattern. Away from major resonance…”
Get full text
Journal Article -
11
The mass of the Milky Way out to 100 kpc using halo stars
Published in Monthly notices of the Royal Astronomical Society (01-03-2021)“…ABSTRACT We use a distribution function analysis to estimate the mass of the Milky Way (MW) out to 100 kpc using a large sample of halo stars. These stars are…”
Get full text
Journal Article -
12
Gas accretion and galactic fountain flows in the Auriga cosmological simulations: angular momentum and metal redistribution
Published in Monthly notices of the Royal Astronomical Society (01-12-2019)“…ABSTRACT Using a set of 15 high-resolution magnetohydrodynamic cosmological simulations of Milky Way formation, we investigate the origin of the baryonic…”
Get full text
Journal Article -
13
Neutron star mergers and rare core-collapse supernovae as sources of r-process enrichment in simulated galaxies
Published in Monthly notices of the Royal Astronomical Society (01-06-2020)“…ABSTRACT We use cosmological, magnetohydrodynamical simulations of Milky Way-mass galaxies from the Auriga project to study their enrichment with rapid neutron…”
Get full text
Journal Article -
14
Subhalo destruction in the Apostle and Auriga simulations
Published in Monthly notices of the Royal Astronomical Society (11-03-2020)“…ABSTRACT N-body simulations make unambiguous predictions for the abundance of substructures within dark matter haloes. However, the inclusion of baryons in the…”
Get full text
Journal Article -
15
A tale of two populations: surviving and destroyed dwarf galaxies and the build-up of the Milky Way’s stellar halo
Published in Monthly notices of the Royal Astronomical Society (01-10-2020)“…ABSTRACT We use magnetohydrodynamical simulations of Milky Way-mass haloes from the Auriga project to investigate the properties of surviving and destroyed…”
Get full text
Journal Article -
16
Determining the full satellite population of a Milky Way-mass halo in a highly resolved cosmological hydrodynamic simulation
Published in Monthly notices of the Royal Astronomical Society (01-11-2021)“…ABSTRACT We investigate the formation of the satellite galaxy population of a Milky Way-mass halo in a very highly resolved magnetohydrodynamic cosmological…”
Get full text
Journal Article -
17
The multiplicity and anisotropy of galactic satellite accretion
Published in Monthly notices of the Royal Astronomical Society (11-05-2018)“…Abstract We study the incidence of group and filamentary dwarf galaxy accretion into Milky Way (MW) mass haloes using two types of hydrodynamical simulations:…”
Get full text
Journal Article -
18
The hestia project: simulations of the Local Group
Published in Monthly notices of the Royal Astronomical Society (01-10-2020)“…ABSTRACT We present the hestia simulation suite: High-resolutions Environmental Simulations of The Immediate Area, a set of cosmological simulations of the…”
Get full text
Journal Article -
19
Numerical simulations of bubble-induced star formation in dwarf irregular galaxies with a novel stellar feedback scheme
Published in Monthly notices of the Royal Astronomical Society (21-02-2014)“…To study the star formation and feedback mechanism, we simulate the evolution of an isolated dwarf irregular galaxy (dIrr) in a fixed dark matter halo, similar…”
Get full text
Journal Article -
20
Baryonic effects on the detectability of annihilation radiation from dark matter subhaloes around the Milky Way
Published in Monthly notices of the Royal Astronomical Society (01-03-2021)“…ABSTRACT We use six, high-resolution Λ-cold dark matter (ΛCDM) simulations of galaxy formation to study how emission from dark matter annihilation is affected…”
Get full text
Journal Article