Explores gauge symmetry, amplitudes, black holes, and fluids, highlighting the interplay between redundancy, diffeomorphisms, and the double copy phenomenon.
Explores the classification and statistics of AGN, black holes, unified AGN model, variability, megamasers, orbital motion measurement, and time-delay cosmography.
Explores the Gravitational-Wave Transient Catalog 2 and the challenges in distinguishing compact bodies, emphasizing the need for accurate waveform models and the discovery potential in gravitational physics.
