Blanchet, Luc and Sathyaprakash, Bangalore Suryanarayana ![]() |
Abstract
The tails of gravitational waves result from the non-linear interaction between the usual quadrupole radiation generated by an isolated system (with total mass--energy M), and the static monopole field associated with M. Their contributions to the field at large distances from the system include a particular effect of modulation of the phase in the Fourier domain, having M as a factor and depending on the frequency as . In this paper we investigate the level at which this tail effect could be detected in future laser interferometric detectors. We consider a family of matched filters of inspiralling compact binary signals, allowing for this effect and parametrized by a family of independent `test' parameters including M. Detecting the effect is equivalent to attributing, by optimal signal processing, a non-zero value to M. The error bar in the measurement of M is computed by analytical and numerical methods as a function of the optimal signal-to-noise ratio (SNR). We find that the minimal values of the SNR for detection of the tail effect at the level range from to for neutron-star binaries (depending on the type of noise in the detector and on our a priori knowledge of the binary), and from to for a black-hole binary with . It is argued that some of these values, at least for black-hole binaries, could be achieved in future generations of detectors, following the currently planned VIRGO and LIGO detectors.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Physics and Astronomy |
Subjects: | Q Science > QB Astronomy |
Publisher: | IOP Publishing |
ISSN: | 0264-9381 |
Last Modified: | 24 Oct 2022 10:52 |
URI: | https://orca.cardiff.ac.uk/id/eprint/46247 |
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