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  Black hole head-on collisions and gravitational waves with fixed mesh-refinement and dynamic singularity excision

Sperhake, U., Kelly, B. J., Laguna, P., Smith, K. L., & Schnetter, E. (2005). Black hole head-on collisions and gravitational waves with fixed mesh-refinement and dynamic singularity excision. Physical Review D, 71: 124042.

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 Creators:
Sperhake, Ulrich, Author
Kelly, Bernard J., Author
Laguna, Pablo, Author
Smith, Kenneth L., Author
Schnetter, Erik1, Author
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1Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24012              

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 Abstract: We present long-term-stable and convergent evolutions of head-on black hole collisions and extraction of gravitational waves generated during the merger and subsequent ring-down. The new ingredients in this work are the use of fixed mesh-refinement and dynamical singularity excision techniques. We are able to carry out head-on collisions with large initial separations and demonstrate that our excision infrastructure is capable of accommodating the motion of the individual black holes across the computational domain as well as their their merger. We extract gravitational waves from these simulations using the Zerilli-Moncrief formalism and find the ring-down radiation to be, as expected, dominated by the l=2, m=0 quasi-normal mode. The total radiated energy is about 0.1 % of the total ADM mass of the system.

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Language(s): eng - English
 Dates: 2005
 Publication Status: Issued
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 Identifiers: eDoc: 213899
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Title: Physical Review D
Source Genre: Journal
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Pages: - Volume / Issue: 71 Sequence Number: 124042 Start / End Page: - Identifier: -