75 citations · 111 across the 11 of their papers we have counts for
6 papers · 1 filter
Non parametric constraints of gravitational-electromagnetic luminosity distance ratio
Sergio Andrés Vallejo-Peña, Antonio Enea Romano, Jonathan Gair
The ratio between the gravitational waves (GW) and electromagnetic waves (EMW) luminosity distance ratio is a key observable that allows to test the nature of gravity, using gravit…
Gravitoelectromagnetic quadrirefringence
Antonio Enea Romano, Sergio A. Vallejo-Peña
We develop an effective approach for the study of the interaction of gravitational waves (GWs) and electromagnetic waves (EMWs), showing that quadrirefringence can be produced, a p…
The Hitchhiker's guide to the galaxy catalog approach for gravitational wave cosmology
Jonathan R. Gair, Archisman Ghosh, Rachel Gray +28
We outline the ``dark siren'' galaxy catalog method for cosmological inference using gravitational wave (GW) standard sirens, clarifying some common misconceptions in the implement…
Model-independent approach to effective sound speed in multi-field inflation
Antonio Enea Romano, Sergio Andrés Vallejo-Peña, Krzysztof Turzyński
For any physical system satisfying the Einstein's equations, the comoving curvature perturbations satisfy an equation involving the momentum-dependent effective sound speed, valid…
Effects of the modification of gravity on the production of primordial black holes
Sergio Andres Vallejo-Pena, Antonio Enea Romano
The enhancement of the spectrum of primordial comoving curvature perturbation can induce the production of primordial black holes (PBH) which could account for part of present…
The effects of anisotropy and non-adiabaticity on the evolution of comoving curvature perturbation
Atsushi Naruko, Antonio Enea Romano, Misao Sasaki +1
We derive the equation for the evolution of the curvature perturbation on the comoving time slice, , in the presence of anisotropic and non-adiabatic terms in the en…