Electromagnetic Energy Extraction in Kerr Black Holes through Frame-Dragging Magnetospheres

Isao Okamoto, Toshio Uchida, Yoogeun Song

It is argued that the zero-angular-momentum-observers (ZAMOs) circulating with the frame-dragging-angular-velocity $\ddot{I}‰$ plays a leading part in energy extraction. When the conditio…