Constraining the effective field theory of dark energy with multimessenger astronomy
arXiv:2309.10903 · doi:10.1103/PhysRevD.111.084086
Abstract
The effective field theory of dark energy predicts a possible time variation of the propagation speed of gravitational waves (GW) which could be tested with multimessenger astronomy. For this purpose we derive the relation between the redshift dependence of the propagation speed of GWs and the time delay between the detection of GWs and electromagnetic waves (EMWs) emitted by the same source. According to the EFT the friction term of the GW propagation equation depends on the effective Planck mass and GW speed time variation, affecting the GW-EMW luminosity distance ratio. We compute the general form of the GW-EMW luminosity distance ratio in terms of the effective GW speed and effective Planck mass, and then focus on theories with constant Planck mass (CPM) and time varying GW speed. For CPM theories the GW speed can be jointly constrained by the GW-EMW detection time delay and luminosity distance ratio, allowing to derive a consistency relation between these two observables. The event GW170817 and its EM counterpart satisfy the CPM consistency condition, and allows to set constraints on the time variation of the GWs speed, and consequently on the coefficients of the effective theory.
Corrected some typos, added DOI
References in corpus (14)
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
- An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM Detection of GRB 170817A
- Swope Supernova Survey 2017a (SSS17a), the Optical Counterpart to a Gravitational Wave Source
- Dark Energy after GW170817: dead ends and the road ahead
- Strong constraints on cosmological gravity from GW170817 and GRB 170817A
- Implications of the Neutron Star Merger GW170817 for Cosmological Scalar-Tensor Theories
- Lorentz-violation-induced arrival delays of cosmological particles
- Resilience of the standard predictions for primordial tensor modes
- GW170817/GRB 170817A/AT2017gfo association: some implications for physics and astrophysics
- The mirage of luminal modified gravitational-wave propagation
- Effective speed of gravitational waves
- Modified propagation of gravitational waves from the early radiation era
- Effective speed of cosmological perturbations