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-i...

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Bibliographic Details
Published in:Physical review letters 2005-04, Vol.94 (13), p.131101.1-131101.4, Article 131101
Main Authors: BAIOTTI, L, HAWKE, I, REZZOLLA, L, SCHNETTER, E
Format: Article
Language:English
Subjects:
Exact sciences and technology
Physics
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Summary: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 approximately 0.25 for LIGO-VIRGO and S/N less than or approximately equal 4 for LIGO II.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.94.131101