Institute of Theoretical Physics · Faculty of Mathematics and Physics, Charles University
Gen. Relativ. Gravit. 31(0), 53-71 (1999)
The motion of the shell of charged testparticles falling radially from rest at infinity withzero total angular momentum onto a Kerr–Newmanblack hole is studied. The shell, initially spherical,becomes prolate along the axis of symmetry of the holeduring the fall. The shape of the shell from theviewpoint of distant observers is characterized by meansof the photons moving along geodesics of the outgoing principal null congruence. The motion of theshell is examined analytically for large distances andnear the horizon. In the special case, when at largedistances of the hole the attractive Newtongravitational force is compensated by the repulsive Coulombforce, the complete motion is given explicitly in termsof elementary functions.
@article{UTF91,
author = {Stuchlik, Z. and Bičák, J. and Balek, V.},
title = {{The Shell of Incoherent Charged Matter Falling onto a Charged Rotating Black Hole}},
journal = {Gen. Relativ. Gravit.},
volume = {31},
number = {0},
pages = {53-71},
year = {1999},
url = {http://www.springerlink.com/content/k83x2311t4623q12},
}