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Bowen-York trumpet data and black-hole simulations

Hannam, Mark ORCID:, Husa, Sascha and Murchadha, Niall Ó 2009. Bowen-York trumpet data and black-hole simulations. Physical Review D 80 (12) , 124007. 10.1103/PhysRevD.80.124007

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The most popular method to construct initial data for black-hole-binary simulations is the puncture method, in which compactified wormholes are given linear and angular momentum via the Bowen-York extrinsic curvature. When these data are evolved, they quickly approach a trumpet topology, suggesting that it would be preferable to use data that are in trumpet form from the outset. To achieve this, we extend the puncture method to allow the construction of Bowen-York trumpets, including an outline of an existence and uniqueness proof of the solutions. We construct boosted, spinning and binary Bowen-York puncture trumpets using a single-domain pseudospectral elliptic solver, and evolve the binary data and compare with standard wormhole-data results. We also show that for boosted trumpets the black-hole mass can be prescribed a priori, without recourse to the iterative procedure that is necessary for wormhole data.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Additional Information: 16 pp.
Publisher: American Physical Society
ISSN: 1550-7998
Last Modified: 20 Oct 2022 08:09

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