4 papers
Time evolution of a Nambu-Goto string coiling around a Kerr black hole
Hirotaka Yoshino, Kousuke Tanaka
The interaction between a Nambu-Goto string and a Kerr black hole gives one of the methods of energy extraction from a rotating black hole. Although the properties of such processe…
Motion of a charged test particle around a static black hole in a monopole magnetic field
Ken-ichi Nakao, Yota Endo, Hideki Ishihara +4
We study the motion of a charged test particle in the spacetime with a spherically symmetric black hole which is immersed in a monopole magnetic field. We show that the radial moti…
Classification of global structures of evaporating regular black holes with infinite periods of time
Kensuke Sueto, Hirotaka Yoshino
We carry out model independent analyses for global structures of spherically symmetric regular black holes that evaporate and approach the extremal state spending infinite periods…
Electrification of a non-rotating black hole
Ken-ichi Nakao, Kenta Matsuo, Hirotaka Yoshino +1
Zajacek et al made an interesting theoretical prediction on the electrification of a non-rotating black hole; if a non-rotating black hole is surrounded by plasma composed of proto…