Strong Gravity research at Perimeter Institute is devoted to understanding both the theoretical and observational aspects of systems in which gravity is very strong (i.e., spacetime is highly curved or dynamical],. On one hand, this means studying extreme astrophysical systems, like black holes and neutron stars, as well as making and testing predictions for existing and forthcoming gravitational wave detectors, electromagnetic telescopes, and particle astrophysics experiments. On the other hand, it also includes a range of nonastrophysical topics, such as the instabilities of higherdimensional black holes or the dynamics of stronglycoupled quantum field theories (via holography). The goal of strong gravity researcher is to test the validity of Einstein's theory of gravity, constrain proposed alternatives, understand the most extreme astrophysical systems, and investigate the ways in which highly curved or dynamical spacetimes are linked with a range of other problems in fundamental physics.
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Mysteries of fast radio bursts
Dongzi Li California Institute of Technology (Caltech)

Hypermassive neutron stars: from numerical relativity simulations to gammaray data
Cecilia Chirenti Universidade Federal do ABC

Scalar fields in strong gravity: black holes, neutron stars and wormholes
Georgios Antoniou University of Nottingham

Horizon entropy and the Einstein equation  Lecture 20230302
Ted Jacobson University of Maryland, College Park

Horizon entropy and the Einstein equation  Lecture 20230228
Ted Jacobson University of Maryland, College Park

Horizon entropy and the Einstein equation  Lecture 20230223
Ted Jacobson University of Maryland, College Park

Horizon entropy and the Einstein equation  Lecture 20230221
Ted Jacobson University of Maryland, College Park

Formation of Primordial black hole during the QCD phasetransition
Ilia Musco Sapienza University of Rome

Probing extreme configurations in binary compact object mergers
Samuel Tootle Goethe University Frankfurt

Beyond the linear tide: impact of the nonlinear tidal response of neutron stars on gravitational waveforms from binary inspirals
Hang Yu California Institute of Technology (Caltech)  Division of Physics Mathematics & Astronomy

Spin Signatures in VLBI Images of Supermassive Black Hole Accretion Flows
Daniel Palumbo Smithsonian Astronomical Observatory