activity
20132026
most citedStrong constraints on cosmological gravity from GW170817 and GRB 170817A

829 citations · 2.8k across the 35 of their papers we have counts for

collaborators

35 papers

astro-ph.CO2026

Consistency between cosmological and standard siren observations in evolving dark energy

Macarena Lagos, William J. Wolf

A scalar field non-minimally coupled to gravity can be the driver of cosmic acceleration. Such a non-minimal coupling (NMC) can produce a non-zero gravitational-wave (GW) friction…

gr-qc2026

Gravitational Wave Birefringence in generalized Palatini Chern Simons

Jose Perdiguero, Macarena Lagos

The cosmological propagation of gravitational waves (GWs) can exhibit amplitude and phase polarization distortions when parity symmetry is broken, a phenomenon known as cosmologica…

gr-qc2024

Birefringence tests of gravity with multi-messenger binaries

Macarena Lagos, Leah Jenks, Maximiliano Isi +7

Extensions to General Relativity (GR) allow the polarization of gravitational waves (GW) from astrophysical sources to suffer from amplitude and velocity birefringence, which respe…

gr-qc2023★ 2 cited

Parameterized Parity Violation in Gravitational Wave Propagation

Leah Jenks, Lyla Choi, Macarena Lagos +1

Gravitational parity violation arises in a variety of theories beyond general relativity. Gravitational waves in such theories have their propagation altered, leading to birefringe…

gr-qc2022★ 15 cited

Chiral Gravitational Waves in Palatini Chern-Simons

Felipe Sulantay, Macarena Lagos, Máximo Bañados

We study the parity-breaking higher-curvature gravity theory of Chern-Simons (CS), using the Palatini formulation in which the metric and connection are taken to be independent fie…

gr-qc2022★ 172 cited

Nonlinearities in Black Hole Ringdowns

Keefe Mitman, Macarena Lagos, Leo C. Stein +11

The gravitational wave strain emitted by a perturbed black hole (BH) ringing down is typically modeled analytically using first-order BH perturbation theory. In this Letter we show…