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Photograph of Ross Church

Ross Church

Senior lecturer

Photograph of Ross Church

N-body simulations with live stellar evolution

Author

  • Ross P. Church
  • Christopher A. Tout
  • Jarrod R. Hurley

Summary, in English

An N-body code containing live stellar evolution through combination of the software packages nbody6 and stars is presented. Operational details of the two codes are outlined and the changes that have been made to combine them discussed. We have computed the evolution of clusters of 104 stars using the combined code and we compare the results with those obtained using nbody6 and the synthetic stellar evolution code sse. We find that, providing the physics package within stars is set up correctly to match the parameters of the models used to construct sse, the results are very similar. This provides a good indication that the new code is working well. We also demonstrate how this physics can be changed simply in the new code with convective overshooting as an example. Similar changes in sse would require considerable reworking of the model fits. We conclude by outlining proposed future development of the code to include more complete models of single stars and binary star systems.

Publishing year

2009-08-04

Language

English

Pages

92-102

Publication/Series

Publications of the Astronomical Society of Australia

Volume

26

Issue

1

Document type

Journal article

Publisher

CSIRO Publishing

Topic

  • Astronomy, Astrophysics and Cosmology

Keywords

  • Methods: N-body simulations
  • Methods: numerical
  • Open clusters and associations: general
  • Stars: evolution
  • Stars: mass-loss

Status

Published

ISBN/ISSN/Other

  • ISSN: 1323-3580