Frame-dragging effects on magnetic fields near a rotating black hole

0384840 - ASÚ 2015 RIV GB eng C - Conference Paper (international conference)
Karas, Vladimír - Kopáček, Ondřej - Kunneriath, Devaky
Frame-dragging effects on magnetic fields near a rotating black hole.
Astronomy at High Angular Resolution : The Central Kiloparsec in Galactic Nuclei. Bristol: Institute of Physics Publishing, 2012, Roč. 372, č. 1 /2012/, 012028/1-012028/8. Journal of Physics Conference Series, 372. ISSN 1742-6588.
[Astronomy at High Angular Resolution - The Central Kiloparsec in Galactic Nuclei. Bad Honnef (DE), 28.08.2011-02.09.2011]
R&D Projects: GA ČR GD205/09/H033
Grant - others:ESA(XE) ESA-PECS project No. 98040
Institutional research plan: CEZ:AV0Z10030501
Keywords : magnetic field * black hole
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics

We discuss the role of general relativity frame dragging acting on magnetic field lines near a rotating (Kerr) black hole. Near ergosphere the magnetic structure becomes strongly influenced and magnetic null points can develop. We consider aligned magnetic fields as well as fields inclined with respect to the rotation axis, and the two cases are shown to behave in profoundly different ways. Further, we construct surfaces of equal values of local electric and magnetic intensities, which have not yet been discussed in the full generality of a boosted rotating black hole.
Permanent Link: http://hdl.handle.net/11104/0214338