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APS » Journals » Phys. Rev. D » Volume 71 » Issue 8
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Phys. Rev. D 71, 081301(R) (2005) [5 pages]

Computational relativistic astrophysics with adaptive mesh refinement: Testbeds

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Edwin Evans1, Sai Iyer1, Erik Schnetter2, Wai-Mo Suen1,3, Jian Tao1, Randy Wolfmeyer1, and Hui-Min Zhang1
1McDonnell Center for the Space Sciences, Department of Physics, Washington University, St. Louis, Missouri 63130, USA
2Albert-Einstein-Institut, Am Mühlenberg 1, D-14467, Potsdam, Germany
3Physics Department, University of Hong Kong, Hong Kong

Received 21 February 2005; published 14 April 2005

We have carried out numerical simulations of strongly gravitating systems based on the Einstein equations coupled to the relativistic hydrodynamic equations using adaptive mesh refinement (AMR) techniques. We show AMR simulations of NS binary inspiral and coalescence carried out on a workstation having an accuracy equivalent to that of a 10253 regular unigrid simulation, which is, to the best of our knowledge, larger than all previous simulations of similar NS systems on supercomputers. We believe the capability opens new possibilities in general relativistic simulations.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.71.081301
DOI:
10.1103/PhysRevD.71.081301
PACS:
95.30.Sf, 04.30.Db, 04.40.Dg, 97.60.Jd
 
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