Accessibility of the gravitational-wave background due to binary coalescences to second and third generation gravitational-wave detectors

C. Wu, V. Mandic, T. Regimbau

Research output: Contribution to journalArticlepeer-review

71 Scopus citations

Abstract

Compact binary coalescences, such as binary neutron stars or black holes, are among the most promising candidate sources for the current and future terrestrial gravitational-wave detectors. While such sources are best searched using matched template techniques and chirp template banks, integrating chirp signals from binaries over the entire universe also leads to a gravitational-wave background (GWB). In this paper we systematically scan the parameter space for the binary coalescence GWB models, taking into account uncertainties in the star formation rate and in the delay time between the formation and coalescence of the binary, and we compare the computed GWB to the expected sensitivities of the second and third generation gravitational-wave detector networks. We find that second generation detectors are likely to detect the binary coalescence GWB, while the third generation detectors will probe most of the available parameter space. The binary coalescence GWB will, in fact, be a foreground for the third generation detectors, potentially masking the GWB background due to cosmological sources. Accessing the cosmological GWB with third generation detectors will therefore require identification and subtraction of all inspiral signals from all binaries in the detectors' frequency band.

Original languageEnglish (US)
Article number104024
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume85
Issue number10
DOIs
StatePublished - May 15 2012
Externally publishedYes

Fingerprint Dive into the research topics of 'Accessibility of the gravitational-wave background due to binary coalescences to second and third generation gravitational-wave detectors'. Together they form a unique fingerprint.

Cite this