Post-Newtonian Binary Dynamics in Effective Field Theory of Horndeski Gravity
arXiv:2312.02507 · doi:10.1088/1674-1137/ad1a0c
Abstract
General relativity has been very successful since its proposal more a century ago. However, various cosmological observations and theoretical consistency still motivate us to explore extended gravity theories. Horndeski gravity stands out as one attractive theory by introducing only one scalar field. Here we formulate the post-Newtonian effective field theory of Horndeski gravity and investigate the conservative dynamics of the inspiral compact binary systems. We calculate the leading effective Lagrangian for a compact binary and obtain the periastron advance per period. In particular, we apply our analytical calculation to two binary systems, PSR B 1534+12 and PSR J0737-3039, and constrain the relevant model parameters. The theoretical framework can also be extended to higher order systematically.
1+22 pages, 9 figures
References in corpus (13)
- 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
- Generalized Galileons: All scalar models whose curved background extensions maintain second-order field equations and stress tensors
- Horndeski theory and beyond: a review
- Unifying framework for scalar-tensor theories of gravity
- Towers of Gravitational Theories
- Dynamics of compact binary systems in scalar-tensor theories: II. Center-of-mass and conserved quantities to 3PN order
- Effective field theory for gravitational radiation in scalar-tensor gravity
- Third post-Newtonian effective-one-body Hamiltonian in scalar-tensor and Einstein-scalar-Gauss-Bonnet gravity
- Spin-orbit effects for compact binaries in scalar-tensor gravity
- Study of eccentric binaries in Horndeski theory
- Constraining Horndeski theory with gravitational waves from coalescing binaries
- Gravidynamics, spinodynamics and electrodynamics within the framework of gravitational quantum field theory
Cited by in corpus (3)
- Quasi-Keplerian parametrization for eccentric compact binaries in scalar-tensor theories at second post-Newtonian order and applications
- PPN meets EFT of dark energy: Post-Newtonian approximation in higher-order scalar-tensor theories
- Quasi-Keplerian parametrization for compact binaries on hyperbolic orbits in scalar-tensor theories at second post-Newtonian order