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The No-Hair Theorem Parameters can be Reduced to solely the Black Hole\'s Specific Angular Momentum

Thierry De Mees
Year: 2011 Pages: 3
Keywords: Coriolis Gravity, Gravitomagnetism, No-Hair Theorem, black hole, star, specific angular velocity, specific gravity
The physicist John Wheeler is told having made a famous remark, \"Black holes have no hair.\" This referred to the postulate that all black hole solutions of the general relativity, better, of the Einstein-Maxwell equations of gravitation, and of electromagnetism, can be completely characterized by only three externally observable classical parameters: mass, electric charge, and angular momentum, when observed from outside its event horizon.

I show here that consequently, Gravitomagnetism is fully compatible with the No-Hair Theorem. Also, I deduce here that for a globally electrically neutral black hole, the No-Hair Theorem can be reduced to the knowledge of its specific angular momentum only, without the need of its gravitational attributes. Finally, I deduce the black hole\'s angular momentum out of the black holes\' observed gravitational properties upon an orbiting object.