Tight constraints on Einstein-dilation-Gauss-Bonnet gravity from GW190412 and GW190814
arXiv:2104.07590 · doi:10.1103/PhysRevD.104.024015
Abstract
Gravitational-wave (GW) data can be used to test general relativity in the highly nonlinear and strong field regime. Modified gravity theories such as Einstein-dilation-Gauss-Bonnet and dynamical Chern-Simons can be tested with the additional GW signals detected in the first half of the third observing run of Advanced LIGO/Virgo. Specifically, we analyze gravitational-wave data of GW190412 and GW190814 to place constraints on the parameters of these two theories. Our results indicate that dynamical Chern-Simons gravity remains unconstrained. For Einstein-dilation-Gauss-Bonnet gravity, we find when considering GW190814 data, assuming it is a black hole binary. Such a constraint is improved by a factor of approximately in comparison to that set by the first Gravitational-Wave Transient Catalog events.
arXiv comment9 pages, 4 figures, published in PRD
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