Detectability of gravitational radiation from stellar-core collapse

Astronomy and Astrophysics – Astronomy

Scientific paper

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Equations Of State, Gravitational Collapse, Gravitational Waves, Laser Interferometry, Signal To Noise Ratios, Stellar Cores, Finite Difference Theory, Supernovae

Scientific paper

Detailed finite-difference calculations of axisymmetric stellar-core collapse designed to determine the gravitational radiation waveforms were performed. The resulting waveforms are interpreted in the context of the most advanced detectors envisioned from the proposed Laser-Interferometer Gravitational-wave Observatory (LIGO). It is assumed that, to be considered detectable, a burst of gravitational radiation must be responsible for on average at least three event per year whose SNR has less than 5 percent probability of being generated by detector noise. With this criterion, it is found that gravitational radiation from axisymmetric stellar-core collapse is not detectable by the proposed LIGO detectors.

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