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

Sperhake, Ulrich; Kelly, Bernard J.; Laguna, Pablo; Smith, Kenneth L.; Schnetter, Erik

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

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

MPS-Authors

Schnetter, Erik
Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

0503071.pdf
(Preprint), 502KB

Supplementary Material (public)

There is no public supplementary material available

Citation

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.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-4EE6-8

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.