The exploration of the universe has recently entered a new era thanks to the multi-
messenger paradigm, characterized by a continuous increase in the quantity and quality of …

Abstract The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders
about the fundamental theory of nature at play in the extreme gravity regime, where the …

Teleparallel gravity (TG) has significantly increased in popularity in recent decades, bringing
attention to Einstein's other theory of gravity. In this Review, we give a comprehensive …

We report evidence for nonlinear modes in the ringdown stage of the gravitational waveform
produced by the merger of two comparable-mass black holes. We consider both the …

The dawn of the twenty-first century came with very positive prospects for gravity, cosmology,
and astrophysics. Technological progress made it possible for cosmology to enter to its …

Accurate models of gravitational waves from merging black holes are necessary for
detectors to observe as many events as possible while extracting the maximum science …

TianQin is a planned space-based gravitational wave (GW) observatory consisting of three
Earth-orbiting satellites with an orbital radius of about. The satellites will form an equilateral …

Gravitational wave observations of compact binaries allow us to test general relativity (and
modifications thereof) in the strong and highly dynamical field regime of gravity. Here, we …

Recent work applying the notion of pseudospectrum to gravitational physics showed that the
quasinormal mode spectrum of black holes is unstable, with the possible exception of the …

Massive vector fields feature in several areas of particle physics, eg, as carriers of weak
interactions, dark matter candidates, or an effective description of photons in a plasma. Here …