https://doi.org/10.1140/epjc/s10052-020-7895-9
Regular Article - Theoretical Physics
Gravitational waves in braneworlds after multi-messenger events
1
Unidad Académica de Física, Universidad Autónoma de Zacatecas, Calzada Solidaridad esquina con Paseo a la Bufa S/N, C.P. 98060, Zacatecas, Mexico
2
Consejo Nacional de Ciencia y Tecnología, Av. Insurgentes Sur 1582. Colonia Crédito Constructor, Del. Benito Juárez, C.P. 03940, Mexico City, Mexico
3
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior C.U., A.P. 70-543, 04510, Mexico D.F., Mexico
* e-mail: aspeitia@fisica.uaz.edu.mx
Received:
23
January
2020
Accepted:
30
March
2020
Published online:
10
April
2020
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 
CDM model and perform a likelihood analysis in order to study effects like the 
tension in comparison to this extra-dimensional theory, obtaining a reduced value of the order of 
in the low energy limit of this theory.
© The Author(s), 2020
