829 citations · 2.8k across the 35 of their papers we have counts for
6 papers · 1 filter
Gravitational wave propagation beyond geometric optics
Giulia Cusin, Macarena Lagos
It is standard practice to study the lensing of gravitational waves (GW) using the geometric optics regime. However, in many astrophysical configurations this regime breaks down as…
Standard Sirens as a novel probe of dark energy
William J. Wolf, Macarena Lagos
Cosmological models with a dynamical dark energy field typically lead to a modified propagation of gravitational waves via an effectively time-varying gravitational coupling …
Curvature Perturbations in the Effective Field Theory of Inflation
Macarena Lagos, Meng-Xiang Lin, Wayne Hu
We discuss the difference between various gauge-invariant quantities typically used in single-field inflation, namely synchronous , comoving , and unitary curvature…
Cosmological Instabilities and the Role of Matter Interactions in Dynamical Dark Energy Models
William J. Wolf, Macarena Lagos
We consider cosmological models with a dynamical dark energy field, and study the presence of three types of commonly found instabilities, namely ghost (when fields have negative k…
On the growth of massive scalar hair around a Schwarzschild black hole
Katy Clough, Pedro G. Ferreira, Macarena Lagos
Through numerical simulations of a minimally coupled massive Klein-Gordon scalar field, we show that it is possible to grow hair on a Schwarzschild black hole if one assumes an ini…
Standard sirens with a running Planck mass
Macarena Lagos, Maya Fishbach, Philippe Landry +1
We consider the effect of a time-varying Planck mass on the propagation of gravitational waves (GWs). A running Planck mass arises naturally in several modified gravity theories, a…