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Published September 15, 2001 | Published + Submitted
Journal Article Open

Extending the lifetime of 3D black hole computations with a new hyperbolic system of evolution equations

Abstract

We present a new many-parameter family of hyperbolic representations of Einstein's equations, which we obtain by a straightforward generalization of previously known systems. We solve the resulting evolution equations numerically for a Schwarzschild black hole in three spatial dimensions, and find that the stability of the simulation is strongly dependent on the form of the equations (i.e. the choice of parameters of the hyperbolic system), independent of the numerics. For an appropriate range of parameters we can evolve a single three-dimensional black hole to t ≃ 600 M – 1300 M, and we are apparently limited by constraint-violating solutions of the evolution equations. We expect that our method should result in comparable times for evolutions of a binary black hole system.

Additional Information

© 2001 American Physical Society. (Received 8 May 2001; published 27 August 2001) We thank Harald Pfeiffer, Manuel Tiglio, and James W. York, Jr. for helpful discussions. This work was supported in part by NSF Grant Nos. PHY-9900672 and PHY-0084729 and NASA Grant No. NAG5-7264. Computations were performed on the National Computational Science Alliance SGI Origin 2000, and on the Wake Forest University Department of Physics IBM SP2 with support from an IBM SUR grant.

Attached Files

Published - PhysRevD.64.064017.pdf

Submitted - 0105031.pdf

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August 19, 2023
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