Gravitational waves in braneworlds after multi-messenger events

Abstract

The GW170817 event opened a new window to test modifications to General Relativity with the aim of discard or impose strong constraints in extra dimension theories of gravity. Concerning these theories, the Randall-Sundrum brane-world theory -- 4+1 spacetime model where its covariant Einstein field equations are composed with new extra terms that comes from extra dimensions -- is begin tested in the multi-messenger astronomy field. In the same context, the aim of this paper is to impose new constrictions through measurements of the time-delay between the gravitational and electromagnetic signals: GW170817 and the recent S190425z, over the free cosmological parameters of this modified model. We assume that Gravitational Waves travel along a shortcut on the extra dimension. In addition, we consider the standard $\Lambda$CDM model and perform a likelihood analysis in order to study effects like the $H_0$ tension in comparison to this extra-dimensional theory, obtaining a reduced $H_0$ value of the order of $0.2\%$ in the low energy limit of this theory.

arXiv comment10 pages, 4 figures. Accepted for publication in EPJC

References in corpus (24)

• A Large Mass Hierarchy from a Small Extra Dimension
• An Alternative to Compactification
• Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
• The galileon as a local modification of gravity
• The Einstein Equations on the 3-Brane World
• Covariant Galileon
• Dark Energy after GW170817: dead ends and the road ahead
• Transforming gravity: from derivative couplings to matter to second-order scalar-tensor theories beyond the Horndeski Lagrangian
• General second order scalar-tensor theory, self tuning, and the Fab Four
• Extended Scalar-Tensor Theories of Gravity
• Degenerate higher order scalar-tensor theories beyond Horndeski and disformal transformations
• Stars in the braneworld
• Detectability of inflation-produced gravitational waves
• Limits on the number of spacetime dimensions from GW170817
• Brane-world extra dimensions in light of GW170817
• New observational constraints on $f(T)$ gravity through gravitational-wave astronomy
• Black Hole Astrophysics in AdS Braneworlds
• Brane with variable tension as a possible solution to the problem of the late cosmic acceleration
• Brane Effects on Extra Dimensional Scenarios: A Tale of Two Gravitons
• Eötvös branes
• Irradiated asymmetric Friedmann branes
• Stellar models in Brane Worlds
• The final state of gravitational collapse in Eddington-inspired Born-Infeld theory
• Two-branes with variable tension model and the effective Newtonian constant

Cited by in corpus (3)

• Brane Constant-roll Inflation
• Shortcut in codimension-2 brane cosmology in light of GW170817
• Probing extra dimensions through cosmological observations of dark energy