The Cosmological Constant and Advanced Gravitational Wave Detectors

Abstract

Interferometric gravitational wave detectors could measure the frequency sweep of a binary inspiral [characterized by its chirp mass] to high accuracy. The observed chirp mass is the intrinsic chirp mass of the binary source multiplied by $(1+z)$, where $z$ is the redshift of the source. Assuming a non-zero cosmological constant, we compute the expected redshift distribution of observed events for an advanced LIGO detector. We find that the redshift distribution has a robust and sizable dependence on the cosmological constant; the data from advanced LIGO detectors could provide an independent measurement of the cosmological constant.

13 pages plus 5 figure, LaTeX. Revised and final version, to appear in Phys. Rev. D

References in corpus (4)

• Gravitational Waves from Mergin Compact Binaries: How Accurately Can One Extract the Binary's Parameters from the Inspiral Waveform?
• Observing binary inspiral in gravitational radiation: One interferometer
• Binary inspiral, gravitational radiation, and cosmology
• Gravitational Radiation, Inspiraling Binaries, and Cosmology

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• Determining the Cosmic Equation of State Using Future Gravitational Wave Detectors