The Cosmological Constant and Advanced Gravitational Wave Detectors

Details The Cosmological Constant and Advanced Gravitational Wave Detectors The Cosmological Constant and Advanced Gravitational Wave Detectors

1996-03-10

arxiv.org/abs/astro-ph/9603034v2

Phys.Rev. D56 (1997) 724-729

Astronomy and Astrophysics

Astrophysics

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

Scientific paper

10.1103/PhysRevD.56.724

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.

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