Cosmological bound from the neutron star merger GW170817 in scalar–tensor and F(R) gravity theories

2017/11/30 by Shin'ichi Nojiri, Shin’ichi Nojiri, Sergei D. Odintsov · 43 citations
Mathematics · Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Geometry #Mathematical physics #Mathematics #Neutron star #Physics #Pulsars and Gravitational Waves Research #Scalar (mathematics) #Star (game theory) #Tensor (intrinsic definition) #Theoretical physics #astro-ph.CO #gr-qc #hep-th

paper · pdf · doi:10.1016/j.physletb.2018.01.078

published in Physics Letters B 779, 425-429 (Elsevier BV) · LaTeX 8 pages, title and abstract are changed, some other small corrections, version to appear in Physics Letters B

arxiv created 2018/01/26 · openalex publication_date 2018/02/21 · openalex created_date 2018/02/23 · arxiv updated 2018/04/04 · openalex updated_date 2026/08/05

Abstract

We consider the evolution of cosmological gravitational waves in scalar–tensor theory and F(R) gravity theory as typical models of the modified gravity. Although the propagation speed is not changed from the speed of light, the propagation phase changes when we compare the propagation in these modified gravity theories with the propagation in the ΛCDM model. The phase change might be detected in future observations.

Citations

• Phantom Energy: Dark Energy withw<−1Causes a Cosmic Doomsday
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• Observation of Gravitational Waves from a Binary Black Hole Merger
• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Covariant Galileon
• Planck 2015 results. XIII. Cosmological parameters

Cited by

• Gravitational Waves in f(R) Gravity Power Law Model
• Generalized framework for testing gravity with gravitational-wave propagation. III. Future prospect
• Implications from GW170817 and I-Love-Q relations for relativistic hybrid stars