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

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

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 modif...

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Main Authors: Shin'ichi Nojiri, Sergei D. Odintsov
Format: Article
Language:English
Published: Elsevier 2018-04-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269318300960
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spelling doaj-8f0a92eb88fe40459017cc9b01b1e56b2020-11-24T20:57:49ZengElsevierPhysics Letters B0370-26932018-04-01779425429Cosmological bound from the neutron star merger GW170817 in scalar–tensor and F(R) gravity theoriesShin'ichi Nojiri0Sergei D. Odintsov1Department of Physics, Nagoya University, Nagoya 464-8602, Japan; Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Nagoya 464-8602, Japan; KEK Theory Center, High Energy Accelerator Research Organization (KEK), Oho 1-1, Tsukuba, Ibaraki 305-0801, Japan; Corresponding author.ICREA, Passeig Luis Companys, 23, 08010 Barcelona, Spain; Inst. Space Sciences (ICE-CSIC), C. Can Magrans s/n, 08193 Barcelona, Spain; Inst. Space Sciences of Catalonia (IEEC), 08034 Barcelona, Spain; National Research Tomsk State University, 634050 Tomsk, Russia; Tomsk State Pedagogical University, 634061 Tomsk, Russia; Int. Lab. Theor. Cosmology, TUSUR, 534050 Tomsk, RussiaWe 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. Keywords: Gravitational waves, Alternative theories of gravity, Cosmologyhttp://www.sciencedirect.com/science/article/pii/S0370269318300960
collection DOAJ
language English
format Article
sources DOAJ
author Shin'ichi Nojiri
Sergei D. Odintsov
spellingShingle Shin'ichi Nojiri
Sergei D. Odintsov
Cosmological bound from the neutron star merger GW170817 in scalar–tensor and F(R) gravity theories
Physics Letters B
author_facet Shin'ichi Nojiri
Sergei D. Odintsov
author_sort Shin'ichi Nojiri
title Cosmological bound from the neutron star merger GW170817 in scalar–tensor and F(R) gravity theories
title_short Cosmological bound from the neutron star merger GW170817 in scalar–tensor and F(R) gravity theories
title_full Cosmological bound from the neutron star merger GW170817 in scalar–tensor and F(R) gravity theories
title_fullStr Cosmological bound from the neutron star merger GW170817 in scalar–tensor and F(R) gravity theories
title_full_unstemmed Cosmological bound from the neutron star merger GW170817 in scalar–tensor and F(R) gravity theories
title_sort cosmological bound from the neutron star merger gw170817 in scalar–tensor and f(r) gravity theories
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2018-04-01
description 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. Keywords: Gravitational waves, Alternative theories of gravity, Cosmology
url http://www.sciencedirect.com/science/article/pii/S0370269318300960
work_keys_str_mv AT shinichinojiri cosmologicalboundfromtheneutronstarmergergw170817inscalartensorandfrgravitytheories
AT sergeidodintsov cosmologicalboundfromtheneutronstarmergergw170817inscalartensorandfrgravitytheories
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