K. Ghaderi

Cross Sector Closure Tests of Strong Gravity with Orbits, Photon Geometry, and Ringdown

Orbital timing, black hole imaging, and ringdown probe strong gravity through timelike, null, and perturbative dynamics, but they are commonly analyzed separately. We formulate and implement a shared coupling closure test that requires one dimensionful gravity coupling to reprodu...

Coupled Gravitoelectromagnetic Ringdown of a Maxwell Normalized Exponential de Sitter Core Black Hole

We formulate a two scale magnetic nonlinear electromagnetic completion of an exponential de Sitter core black hole. The additional sector recovers Maxwell electrodynamics at weak field, is exponentially suppressed at the regular center, and has an exact magnetic mass integral. Th...