151 citations · 647 across the 14 of their papers we have counts for
10 papers · 1 filter
Precision Pollution - The effects of enrichment yields and timing on galactic chemical evolution
Pierre-Antoine Poulhazan, Cecilia Scannapieco, Peter Creasey
We present an update to the chemical enrichment component of the smoothed-particle hydrodynamics model for galaxy formation presented in Scannapieco et al. (2005) in order to addre…
Globular Clusters Formed within Dark Halos I: present-day abundance, distribution and kinematics
Peter Creasey, Laura V. Sales, Eric W. Peng +1
We explore a scenario where metal poor globular clusters (GCs) form at the centres of their own dark matter halos in the early universe before reionization. This hypothesis leads t…
Stellar Halos in Illustris- Probing the Histories of Milky Way-Mass Galaxies
Lydia M. Elias, Laura V. Sales, Peter Creasey +4
The existence of stellar halos around galaxies is a natural prediction of the hierarchical nature of the LambdaCDM model. Recent observations of Milky Way-like galaxies have reveal…
The impact of baryonic discs on the shapes and profiles of self-interacting dark matter halos
Omid Sameie, Peter Creasey, Hai-Bo Yu +3
We employ isolated N-body simulations to study the response of self-interacting dark matter (SIDM) halos in the presence of the baryonic potentials. Dark matter self-interactions l…
Spreading out and staying sharp - Creating diverse rotation curves via baryonic and self-interaction effects
Peter Creasey, Omid Sameie, Laura V. Sales +3
Galactic rotation curves are a fundamental constraint for any cosmological model. We use controlled N-body simulations of galaxies to study the gravitational effect of baryons in a…
Properties of Galaxies in the Disc Central Surface Brightness Gap
Jenny G. Sorce, Peter Creasey, Noam I. Libeskind
Intermediate surface brightness (ISB) galaxies are less numerous than their counterparts at high and low surface brightness (HSB and LSB). Investigating ISB characteristics from a…
The Milky Way and Andromeda galaxies in a constrained hydrodynamical simulation: morphological evolution
Cecilia Scannapieco, Peter Creasey, Sebastian E. Nuza +3
We study the two main constituent galaxies of a constrained simulation of the Local Group as candidates for the Milky Way (MW) and Andromeda (M31). We focus on the formation of the…
The Effect of Environment on Milky Way-mass galaxies in a Constrained Simulation of the Local Group
Peter Creasey, Cecilia Scannapieco, Sebastian E. Nuza +3
In this letter we present, for the first time, a study of star formation rate, gas fraction and galaxy morphology of a constrained simulation of the Milky Way (MW) and Andromeda (M…
The metallicity of galactic winds
Peter Creasey, Tom Theuns, Richard G. Bower
The abundance evolution of galaxies depends critically on the balance between the mixing of metals in their interstellar medium, the inflow of new gas and the outflow of enriched g…
How supernova explosions power galactic winds
Peter Creasey, Tom Theuns, Richard G. Bower
Feedback from supernovae is an essential aspect of galaxy formation. In order to improve subgrid models of feedback we perform a series of numerical experiments to investigate how…