44 citations · 105 across the 6 of their papers we have counts for
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The Kinematic Richness of Star Clusters - II. Stability of Spherical Anisotropic Models with Rotation
Philip G. Breen, Simon Rozier, Douglas C. Heggie +1
We study the bar instability in collisionless, rotating, anisotropic, stellar systems, using N-body simulations and also the matrix technique for calculation of modes with the pert…
: Weinberg's weakly damped mode in an -body model of a spherical stellar system
Douglas C. Heggie, Philip G. Breen, Anna Lisa Varri
Spherical stellar systems such as King models, in which the distribution function is a decreasing function of energy and depends on no other invariant, are stable in the sense of c…
Newton vs the machine: solving the chaotic three-body problem using deep neural networks
Philip G. Breen, Christopher N. Foley, Tjarda Boekholt +1
Since its formulation by Sir Isaac Newton, the problem of solving the equations of motion for three bodies under their own gravitational force has remained practically unsolved. Cu…
Mapping the stability of stellar rotating spheres via linear response theory
Simon Rozier, Jean-Baptiste Fouvry, Philip G. Breen +3
Rotation is ubiquitous in the Universe, and recent kinematic surveys have shown that early type galaxies and globular clusters are no exception. Yet the linear response of spheroid…
Light element variations in globular clusters via nucleosynthesis in black hole accretion discs
Philip G. Breen
Ancient globular clusters contain multiple stellar populations identified by variations in light elements (e.g., C, N, O, Na). Although many scenarios have been suggested to explai…
The Kinematic Richness of Star Clusters I. Isolated Spherical Models with Primordial Anisotropy
Philip G. Breen, Anna Lisa Varri, Douglas C. Heggie
We investigate the dynamical evolution of isolated equal-mass star cluster models by means of direct N-body simulations, primarily focusing on the effects of the presence of primor…