Work

Generalized framework for testing gravity with gravitational-wave propagation. I. Formulation

Year: 2018

Type: article

Abstract: The direct detection of gravitational waves (GWs) from merging binary black holes and neutron stars marks the beginning of a new era in gravitational physics, and it brings forth new opportunities to test theories of gravity. To this end, it is crucial to search for anomalous deviations from general relativity in a model-independent way, irrespective of gravity theories, GW sources, and background spacetimes. In this paper, we propose a new universal framework for testing gravity with GWs, based on the generalized propagation of a GW in an effective field theory that describes modification of gravity at cosmological scales. Then, we perform a parameter estimation study, showing how well the future observation of GWs can constrain the model parameters in the generalized models of GW propagation.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.97.104037

Author: Atsushi Nishizawa

Institutions: University of Mississippi, Nagoya University

Language: English

Topic: Pulsars and Gravitational Waves Research

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Japan Society for the Promotion of Science, H2020 Marie Skłodowska-Curie Actions

Awards: G1199308347, CAREER: Physics and Astrophysics of Compact Binaries, G192509961, G3984162807, G8157362042