English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The propagation of gravitational waves (GWs) at cosmological distances offersa new way to test the gravitational interaction at the largest scales. Manymodified theories of gravity, usually introduced to explain the observedacceleration of the universe, can be probed in an alternative and complementarymanner with respect to standard electromagnetic (EM) observations. In thispaper we consider a homogeneous and isotropic cosmology with extra spatialdimensions at large scales, which represents a simple phenomenologicalprototype for extra-dimensional modified gravity cosmological models. Byassuming that gravity propagates through the higher-dimensional spacetime,while photons are constrained to the usual four dimensions of generalrelativity, we derive from first principles the relation between the luminositydistance measured by GW detectors and the one inferred by EM observations. Wethen use this relation to constrain the number of cosmological extra dimensionswith the binary neutron star event GW170817 and the binary black hole mergerGW190521. We further provide forecasts for the Laser Interferometer SpaceAntenna (LISA) by simulating multi-messenger observations of massive black holebinary (MBHB) mergers. This paper extends and updates previous analyses whichcrucially neglected an additional redshift dependency in the GW-EM luminositydistance relation which affects results obtained from multi-messenger GW eventsat high redshift, in particular constraints expected from LISA MBHBs.

Constraining cosmological extra dimensions with gravitational wave standard sirens: from theory to current and future multi-messenger observations