6 papers
The effects of dark energy on the matter-gravity coupling
Antonio Enea Romano
Dark energy perturbations are expected to modify the evolution of cosmological perturbations, producing different observational effects. We show that these effects can be encoded i…
Testing the consistency of gravitational waves and large scale structure constraints on dark energy
Antonio Enea Romano, Juan Manuel Cardenas Mancipe
Gravitational wave (GW) astronomy has opened a new window on the Universe, allowing to obtain constraints on dark energy and gravity independent from other electromagnetic waves ob…
Effective speed approach for scalar field propagation
Kevin Restrepo Tobón, Antonio Enea Romano
We study the propagation of a constant speed gaussian scalar field wave-packet (GWP) in Minkowski space, showing that the energy conditions are violated for superluminal speed. We…
Multimessenger consistency relations bridging gravitational wave and large scale structure observations
Antonio Enea Romano
We show that for Horndeski theories it is possible to derive mathematically compact consistency relations (CR) between physically observable quantities, valid for different classes…
The Effects of the Gravitational Coupling Variation on the Local Estimation
Antonio Enea Romano
We study the effects of the time evolution of the matter-gravity coupling on the luminosity distance, showing it can provide a natural explanation to the apparent Hubble tension. T…
Constraining the effective field theory of dark energy with multimessenger astronomy
Antonio Enea Romano
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 astronom…