Open AccessCharge neutrality condition of black holes and its application to the disc–jet system
Author(s) -
Maruta Daizo
Publication year - 2005
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2005.09437.x
Subject(s) - physics , black hole (networking) , jet (fluid) , electric field , quantum electrodynamics , toroid , spin flip , event horizon , classical mechanics , electric current , charge (physics) , mechanics , computational physics , astrophysics , quantum mechanics , plasma , event (particle physics) , accretion (finance) , computer network , routing protocol , routing (electronic design automation) , computer science , link state routing protocol
In this paper, we derive the stationary Maxwell equations near the event horizon of a Kerr black hole in Boyer–Lindquist coordinates. Using the obtained radial component of the electric current density vector, we obtain the charge neutrality condition of the black hole. This condition depends only on the toroidal magnetic field and is independent of the spin of the black hole. Moreover, we apply it to the electric current structure of the disc–jet system around the black hole. In particular, we refer to the case of the jet structure having a one‐layer and two‐layer structure in the electric current.