Speaker
João Sieiro dos Santos
(Instituto Superior Técnico, CENTRA)
Description
We study radiation from charged particles in circular motion around a Schwarzschild black hole immersed in an asymptotically uniform magnetic field. In curved space, the radiation reaction force is described by the DeWitt-Brehme equation, which includes a complicated, non-local tail term. We studied this system in the weak field regime, where the tail term can be treated directly, and in the strong field regime, using black hole perturbation theory. Our results show that, contrary to some claims in the literature, the tail term cannot be neglected. We also report a surprising "horizon dominance effect".
Authors
Prof.
José Natário
(Instituto Superior Técnico, CAMGSD)
João Sieiro dos Santos
(Instituto Superior Técnico, CENTRA)
Prof.
Vítor Cardoso
(Instituto Superior Técnico, CENTRA ; Niels Bohr Institute)
