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Gravitational-wave emission from rotating gravitational collapse in three dimensions

Gravitational-wave emission from rotating gravitational collapse in three dimensions
Gravitational-wave emission from rotating gravitational collapse in three dimensions
We present the first three-dimensional (3D) calculations of the gravitational-wave emission in the collapse of uniformly rotating stars to black holes. The initial models are polytropes which are dynamically unstable and near the mass-shedding limit. The waveforms have been extracted using a gauge-invariant approach and reflect the properties of both the initial stellar models and of newly produced black holes, being in good qualitative agreement with those computed in previous 2D simulations. The wave amplitudes, however, are about 1 order of magnitude smaller, giving, for a source at 10 kpc, a signal-to-noise ratio S/N~0.25 for LIGO-VIRGO and S/N<~4 for LIGO II.
0031-9007
131101-[4pp]
Baiotti, L.
ebba3d89-0b92-479f-bf70-b477b703e4c1
Hawke, I.
fc964672-c794-4260-a972-eaf818e7c9f4
Rezzolla, L.
09777233-b395-44a5-9b71-fb9c811c3276
Schnetter, E.
544c2aff-bf71-45af-8d32-230f486eb837
Baiotti, L.
ebba3d89-0b92-479f-bf70-b477b703e4c1
Hawke, I.
fc964672-c794-4260-a972-eaf818e7c9f4
Rezzolla, L.
09777233-b395-44a5-9b71-fb9c811c3276
Schnetter, E.
544c2aff-bf71-45af-8d32-230f486eb837

Baiotti, L., Hawke, I., Rezzolla, L. and Schnetter, E. (2005) Gravitational-wave emission from rotating gravitational collapse in three dimensions. Physical Review Letters, 94 (13), 131101-[4pp]. (doi:10.1103/PhysRevLett.94.131101).

Record type: Article

Abstract

We present the first three-dimensional (3D) calculations of the gravitational-wave emission in the collapse of uniformly rotating stars to black holes. The initial models are polytropes which are dynamically unstable and near the mass-shedding limit. The waveforms have been extracted using a gauge-invariant approach and reflect the properties of both the initial stellar models and of newly produced black holes, being in good qualitative agreement with those computed in previous 2D simulations. The wave amplitudes, however, are about 1 order of magnitude smaller, giving, for a source at 10 kpc, a signal-to-noise ratio S/N~0.25 for LIGO-VIRGO and S/N<~4 for LIGO II.

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Published date: 2005

Identifiers

Local EPrints ID: 29319
URI: http://eprints.soton.ac.uk/id/eprint/29319
ISSN: 0031-9007
PURE UUID: efa73d12-9695-4df3-ae84-6bb314399d79
ORCID for I. Hawke: ORCID iD orcid.org/0000-0003-4805-0309

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Date deposited: 11 May 2006
Last modified: 29 Oct 2019 01:49

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Contributors

Author: L. Baiotti
Author: I. Hawke ORCID iD
Author: L. Rezzolla
Author: E. Schnetter

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