263 citations · 1.1k across the 11 of their papers we have counts for
11 papers
Hierarchical formation of Westerlund 1: a collapsing cluster with no primordial mass segregation?
Mario Gennaro, Simon P. Goodwin, Richard J. Parker +2
We examine the level of substructure and mass segregation in the massive, young cluster Westerlund 1. We find that it is relatively smooth, with little or no mass segregation, but…
A hybrid SPH/N-body method for star cluster simulations
D. A. Hubber, R. J. Allison, R. Smith +1
We present a new hybrid Smoothed Particle Hydrodynamics (SPH)/N-body method for modelling the collisional stellar dynamics of young clusters in a live gas background. By deriving t…
On the Origin of Mass Segregation in NGC 3603
Xiaoying Pang, Eva K. Grebel, Richard J. Allison +5
We present deep Hubble Space Telescope/Wide Field and Planetary Camera 2 photometry of the young HD 97950 star cluster in the giant H {\sc ii} region NGC 3603. The data were obtain…
Testing the initial conditions and dynamical evolution of star clusters using Gaia - I
Richard J. Allison
We investigate how the properties of escaping stars are related to the initial conditions of their birth clusters. We find that the number of escaping stars, their spatial distribu…
Importance of the Initial Conditions for Star Formation - III: Statistical Properties of Embedded Protostellar Clusters
Philipp Girichidis, Christoph Federrath, Richard Allison +2
We investigate the formation of protostellar clusters during the collapse of dense molecular cloud cores with a focus on the evolution of potential and kinetic energy, the degree o…
The evolution of binary populations in cool, clumpy star clusters
Richard J. Parker, Simon P. Goodwin, Richard J. Allison
Observations and theory suggest that star clusters can form in a subvirial (cool) state and are highly substructured. Such initial conditions have been proposed to explain the leve…