Digging Deeper: Observing Primordial Gravitational Waves below the Binary-Black-Hole-Produced Stochastic Background

T. Regimbau, M. Evans, N. Christensen, E. Katsavounidis, B. Sathyaprakash, S. Vitale

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

The merger rate of black hole binaries inferred from the detections in the first Advanced LIGO science run implies that a stochastic background produced by a cosmological population of mergers will likely mask the primordial gravitational wave background. Here we demonstrate that the next generation of ground-based detectors, such as the Einstein Telescope and Cosmic Explorer, will be able to observe binary black hole mergers throughout the Universe with sufficient efficiency that the confusion background can potentially be subtracted to observe the primordial background at the level of ΩGW≃10-13 after 5 years of observation.

Original languageEnglish (US)
Article number151105
JournalPhysical review letters
Volume118
Issue number15
DOIs
StatePublished - Apr 14 2017

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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