Monday, March 25, 2013

1303.5446 (Stefano Camera et al.)

Beyond Concordance Cosmology with Magnification of Gravitational-Wave Standard Sirens    [PDF]

Stefano Camera, Atsushi Nishizawa
We show how future gravitational-wave detectors would be able of discriminating between the concordance LCDM cosmological model and up-to-date competing alternatives, e.g. dynamical dark energy models (DE) or modified gravity theories (MG). Our method consists in using the weak-lensing magnification effect that affects a standard-siren signal because of its travelling trough the Universe's large-scale structure. As a demonstration, we present constraints on DE and MG from proposed gravitational-wave detectors, namely ET and DECIGO/BBO.
View original: http://arxiv.org/abs/1303.5446

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