Spacetime approach to force-free magnetospheres

Understand

Force-Free Electrodynamics (FFE) describes magnetically dominated relativistic plasma via non-linear equations for the electromagnetic field alone.

• Such plasma is thought to play a key role in the physics of pulsars and active black holes.
• Despite its simple covariant formulation, FFE has primarily been studied in 3+1 frameworks, where spacetime is split into space and time.
• In this article we systematically develop the theory of force-free magnetospheres taking a spacetime perspective.