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Cosmography with the Einstein Telescope

Sathyaprakash, Bangalore Suryanarayana, Schutz, Bernard Frederick and Van Den Broeck, Chris 2010. Cosmography with the Einstein Telescope. Classical and Quantum Gravity 27 (21) , 215006. 10.1088/0264-9381/27/21/215006

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Abstract

The Einstein Telescope, a third-generation gravitational-wave detector under a design study, could detect millions of binary neutron star inspirals each year. A small fraction of these events might be observed as gamma-ray bursts, helping to measure both the luminosity distance DL to and redshift of the source. By fitting these measured values of DL and to a cosmological model, it would be possible to infer the dark energy equation of state to within 1.5% without the need to correct for errors in DL caused by weak lensing. This compares favourably with 0.3–10% accuracy that can be achieved with the Laser Interferometer Space Antenna (where weak lensing will need to be dealt with) as well as with dedicated dark energy missions that have been proposed, where 3.5–11% uncertainty is expected.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Instrumentation and measurement; Gravitation and cosmology; Particle physics and field theory; Astrophysics and astroparticles
Publisher: Institute of Physics
ISSN: 0264-9381
Last Modified: 18 Oct 2017 13:39
URI: http://orca-mwe.cf.ac.uk/id/eprint/7345

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