Modifications for numerical stability of black hole evolution

We experiment with several new modifications to the Baumgarte-Shapiro-Shibata-Nakamura formulation of Einstein's field equation, and demonstrate how these modifications affect the stability of numerical black hole evolution. With these modifications, we obtain accurate and stable simulations of...

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Bibliographic Details
Published in:Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2012-09, Vol.86 (6), Article 064027
Main Authors: Yo, Hwei-Jang, Lin, Chun-Yu, Cao, Zhoujian
Format: Article
Language:English
Subjects:
Black holes (astronomy)
Computer simulation
Cosmology
Einstein equations
Evolution
Gravitation
Mathematical models
Numerical stability
Stability
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Summary:We experiment with several new modifications to the Baumgarte-Shapiro-Shibata-Nakamura formulation of Einstein's field equation, and demonstrate how these modifications affect the stability of numerical black hole evolution. With these modifications, we obtain accurate and stable simulations of both single excised Kerr-Schild black holes and punctured binary black holes.
ISSN:1550-7998
1550-2368
DOI:10.1103/PhysRevD.86.064027