Formation and Dynamical Evolution of Multiple Stellar Generations in Globular Clusters (2008)
D'Ercole, Annibale, Vesperini, Enrico, D'Antona, Francesca, McMillan, Stephen L. W., Recchi, Simone
Some globular clusters are observed to host a population of second generation (SG) stars which show chemical anomalies and must have formed from gas containing matter processed in the envelopes of...
Beowulf Analysis Symbolic INterface BASIN: Interactive Parallel Data Analysis for Everyone (2008)
Vesperini, Enrico, Goldberg, David M., McMillan, Stephen L. W., Dura, James, Jones, Douglas
The advent of affordable parallel computers such as Beowulf PC clusters and, more recently, of multi-core PCs has been highly beneficial for a large number of scientists and smaller institutions that...
Gravitational Dynamics of Large Stellar Systems (2008)
Internal dynamical evolution can drive stellar systems into states of high central density. For many star clusters and galactic nuclei, the time scale on which this occurs is significantly less than...
Portegies Zwart, Simon F., McMillan, Stephen L.W., Makino, Junichiro
We study the first 100Myr of the evolution of isolated star clusters initially contain- ing 144179 stars, including 13107 (10%) primordial hard binaries. Our calculations in- clude the effects of...
A dynamical origin for early mass segregation in young star clusters (2006)
McMillan, Stephen L.W., Vesperini, Enrico, Zwart, Simon F. Portegies
Some young star clusters show a degree of mass segregation that is inconsistent with the effects of standard two-body relaxation from an initially unsegregated system without substructure, in virial...
The ecology of star clusters and intermediate mass black holes in the Galactic bulge (2005)
Zwart, Simon Portegies, Baumgardt, Holger, McMillan, Stephen L. W., Makino, Junichiro, Hut, Piet, Ebisuzaki, Toshi
We simulate the inner 100pc of the Milky-Way Galaxy to study the formation and evolution of the population of star clusters and intermediate mass black holes. For this study we perform extensive...
Star Cluster Simulations Including Stellar Evolution (2002)
The past few years have seen dramatic improvements in the scope and realism of star cluster simulations. Accurate treatments of stellar evolution, coupled with robust descriptions of all phases of...
Runaway Collisions in Star Clusters (2000)
Zwart, Simon F. Portegies, Makino, Junichiro, McMillan, Stephen L. W., Hut, Piet
We study the occurrence of physical collisions between stars in young and compact star cluster. The calculations are performed on the GRAPE-4 with the starlab software environment which include the...
Star cluster ecology IVa: Dissection of an open star cluster---photometry (2000)
Zwart, Simon F. Portegies, McMillan, Stephen L. W., Hut, Piet, Makino, Junichiro
The evolution of star clusters is studied using N-body simulations in which the evolution of single stars and binaries are taken self-consistently into account. Initial conditions are chosen to...
Star cluster ecology III: Runaway collisions in young compact star clusters (1998)
Zwart, Simon Portegies, Makino, Junichiro, McMillan, Stephen L. W., Hut, Piet
The evolution of young compact star clusters is studied using N-body simulations in which both stellar evolution and physical collisions between stars are taken into account. The initial conditions...
Star Cluster Ecology II: Binary evolution with single-star encounters (1997)
Zwart, Simon F. Portegies, Hut, Piet, McMillan, Stephen L. W., Verbunt, Frank
Three-body effects greatly complicate stellar evolution. We model the effects of encounters of binaries with single stars, based on parameters chosen from conditions prevalent in the cores of...
GRAPE-6: A Petaflops Prototype (1997)
Hut, Piet, Arnold, Jeffrey M., Makino, Junichiro, McMillan, Stephen L. W., Sterling, Thomas L.
We present the outline of a research project aimed at designing and constructing a hybrid computing system that can be easily scaled up to petaflops speeds. As a first step, we envision building a...
Zhuge, Xing, Centrella, Joan M., McMillan, Stephen L. W.
We calculate the gravitational radiation produced by the coalescence of inspiraling binary neutron stars in the Newtonian regime using 3-dimensional numerical simulations. The stars are modeled as...
Binary--single-star scattering VI. Automatic Determination of Interaction Cross Sections (1996)
McMillan, Stephen L. W., Hut, Piet
Scattering encounters between binaries and single stars play a central role in determining the dynamical evolution of a star cluster. In addition, three-body scattering can give rise to many...
Gravitational Radiation from Coalescing Binary Neutron Stars (1994)
Zhuge, Xing, Centrella, Joan M., McMillan, Stephen L. W.
We calculate the gravitational radiation produced by the merger and coalescence of inspiraling binary neutron stars using 3-dimensional numerical simulations. The stars are modeled as polytropes and...
Gravothermal Expansion in an $N$-Body System (1993)
Heggie, Douglas C., Inagaki, Shogo, McMillan, Stephen L. W.
This paper describes the numerical evolution of an $N$-body system with a slight ``temperature inversion''; i.e. the maximum velocity dispersion occurs not at the centre but further out. Fluid models...