1205.5111 (Hwei-Jang Yo et al.)

Modifications for numerical stability of black hole evolution    [PDF]

Hwei-Jang Yo, Zhoujian Cao, Chun-Yu Lin

We experiment with several new modifications for the Baumgarte-Shapiro-Shibata-Nakamura (BSSN) formulation of the Einstein field equations and demonstrate how these modifications affect the stability of numerical black hole evolution calculations. With these modifications, we evolve both single non-rotating excised Kerr-Schild black holes and punctured binary black holes, and obtain accurate and stable simulations.

View original: http://arxiv.org/abs/1205.5111