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

0384840 - ASÚ 2015 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
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]
Grant CEP: GA ČR GD205/09/H033
Grant ostatní: ESA(XE) ESA-PECS project No. 98040
Výzkumný záměr: CEZ:AV0Z10030501
Klíčová slova: magnetic field * black hole
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika

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.
Trvalý link: http://hdl.handle.net/11104/0214338