Black holes are a result of the no-hair theorem Bransgrove, et. al./American Physical SocietyBlack holes that have hair will soon go bald. The no-hair theory, a key theory about black holes, states that an isolated blackhole can be described using just three numbers: its mass, spin, charge, and all other properties (such as hair) are irrelevant. A series of simulations have shown that black holes can emit a magnetic field in order to conform with the no-hair theory.A magnetic field is created when a black hole forms out of a magnetised star. How?
