Speaker
Description
The radiation reaction force acting on charged particle cannot be neglected in many astrophysically relevant scenarios. The charge of a black hole is negligible in astrophysically scenarios due to the unrealistically large charge values required for the Reissner-Nordström spacetime metric. However, such kind of dilemma is not valid for black holes carrying small electric charge due to numerous mechanisms of selective accretion. The Lorenz-Dirac (LD) equation describes the motion of a point charge with radiation reaction in flat spacetime, while the DeWitt-Brehme(DWB) equation - in curved spacetime. We use DWB equation simplified to the covariant form of the LD equation for the motion of charged particles in the vicinity of the weakly charged Schwarzschild black hole. We study depending on sign of Coulomb force charged particle spirals down to the black hole or stabilizes the circular orbit.
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